Time in Halakha 4
This transcript was produced automatically using artificial intelligence. There may be inaccuracies in the transcribed content and in speaker identification.
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Table of Contents
- The three components of causality
- Logical determinism, the paradox of conditioning, and logic’s indifference to time
- The knowledge of the Holy One, blessed be He, free choice, and Newcomb’s paradox
- Three levels of information about past and future
- Rain forecasts, “Yated Ne’eman,” and the question of the contradiction between providence and the laws of nature
- Quantum theory, collapse of the wave function, and the distinction between randomness and choice
- Vague reality: one who betroths one out of five women, Rabbi Shimon Shkop, and “fuzzy logic”
- The fourth level: a future event that causally determines a present state
- Vows as something that has a permitted solution, and release by a sage according to the Jerusalem Talmud and the Rosh
- “From now on retroactively,” Kant, the age of the world, and a model of two time axes
- Preparation for condition and retroactive clarification as going back in time within a legal framework
- The laws of conditions, the condition of the sons of Gad and the sons of Reuven, and “the condition is void but the act stands”
- Tosafot on “she is hereby betrothed and his condition is void,” and the difficulty of full intent
- Rabbeinu Tam: “he is merely exaggerating with words” as a solution
- Ri in Tosafot: a condition as a legal innovation that allows uprooting an act, not mere retroactive revelation
- Conclusion and documentation note
Summary
General overview
The text defines a causal relation as built from three components, and distinguishes between a logical relation that is indifferent to time and physical causation that requires temporal priority. It draws a sharp distinction between the truth value of a future statement, which already exists now by definition, and information about the future, which sometimes cannot exist in the present—especially when the event depends on free choice and the question of the knowledge of the Holy One, blessed be He. From there, a hierarchy of situations involving information about past and future is developed, and a fourth possibility is presented in which a future event changes how we view the past and even uproots a legal effect retroactively, through examples from vows and conditions in Jewish law. Along the way, the positions of Rabbi Shimon Shkop, Rabbeinu Tam, and Ri are presented regarding the mechanism of annulment and condition, and the text concludes by preparing for a discussion of condition and retroactive clarification as a kind of going backward in time within a legal-halakhic framework.
The three components of causality
The causal relation includes a temporal relation in which the cause precedes the effect, a logical relation of the form “if the cause, then the effect,” and a physical component in which the effect is caused because of the cause. The case of “its beginning was through negligence and its end through unavoidable accident” serves as an example in which all three of these components are visible together.
Logical determinism, the paradox of conditioning, and logic’s indifference to time
Logic is indifferent to time, and therefore a statement about the future can already be true today by virtue of the fit between its content and what will occur in reality. The future event does not causally affect the present; it only determines a truth value, and a truth value is not an event but a definition that can also be based on what will happen tomorrow. The logical relation “if A then B” remains intact even when cause and effect are switched, and therefore it is indifferent to the direction of the flow of time.
The knowledge of the Holy One, blessed be He, free choice, and Newcomb’s paradox
The text connects logical determinism to the question of free choice versus the knowledge of the Holy One, blessed be He, and brings in Newcomb’s paradox and “the story of Osmo” from a book by Richard Taylor. It argues that the truth value of a statement about a future choice already exists today, but information about what a person will freely choose to do tomorrow cannot exist today, because its existence would cancel the choice. It emphasizes that the confusion arises from mixing together the logical claim that the statement is true with the epistemic claim that the information about the future event is already present now.
Three levels of information about past and future
The first situation is an event that already happened and information about it exists, except that the person does not know it until he is exposed to it—for example, the birth of a child whose sex has already been determined but is not yet known. The second situation is a natural future event, in which the truth value already exists today, and one can also say that the information exists in principle because of the determinism of the laws of nature, even if human beings cannot actually calculate it. The third situation is a future event that depends on choice, in which the truth value exists but the information does not exist at all in the present, and it is even said that “not even the Holy One, blessed be He, knows it” when the matter depends on free choice.
Rain forecasts, “Yated Ne’eman,” and the question of the contradiction between providence and the laws of nature
The text describes an outlook according to which predicting rain in advance was perceived as harming faith that the Holy One, blessed be He, determines whether rain will fall, and brings an example from a period when forecasts were published in “Yated Ne’eman” and there was “international rejoicing” whenever the forecaster got it wrong. It argues that weather forecasting in fact keeps improving, and explains this as a matter of computational complexity rather than something impossible in principle. It raises a theological question about the relation between verses like “And I will give your rains in their season, if you walk in My statutes” and the validity of Newton’s laws, and notes that this is “a topic for another lecture,” while mentioning “parallel explanations” and the example of the apple that fell on someone’s head.
Quantum theory, collapse of the wave function, and the distinction between randomness and choice
The text presents the question of truth value before measurement in quantum theory as an open question, including the possibility of collapse affecting the past as opposed to collapse only from this point onward. It states that there is no determinism in quantum theory, but emphasizes that this concerns small systems, whereas the main discussion is aimed at ordinary scales. It also adds that quantum randomness is not free choice, and mentions his book The Science of Freedom, as well as a conversation with “Rabbi Zaini’s replacement at the Technion,” who was “also a doctor of physics” and claimed that quantum theory might help us understand choice—a claim the speaker does not fully accept.
Vague reality: one who betroths one out of five women, Rabbi Shimon Shkop, and “fuzzy logic”
The Talmudic discussion of “one who betroths one out of five women” is brought as a case in which the man does not define who is betrothed, and a state is created of “betrothal not fit for intercourse,” in the dispute between Abaye and Rava, with the consequence that all five would require a bill of divorce according to the opinion that valid betrothal exists. Rabbi Shimon Shkop argues that this is not a “doubt” in the sense of a defined reality together with human ignorance, but an undefined reality in which “even the Holy One, blessed be He, does not know who my wife is,” because “there is no information at all.” The text describes this as a vague reality resembling “Schrödinger’s cat,” and distinguishes between probabilistic treatment of doubt and “fuzzy logic,” in which there are degrees of belonging, as in the heap paradox and the expression “certainly a faint heap.”
The fourth level: a future event that causally determines a present state
The text presents a fourth level that seems, at first glance, impossible: a future event causally determines the present state and not merely a logical truth value. It places the discussion in the context of “something that has a permitted solution” and illustrates it with a doubt concerning muktzeh and the reasoning, “instead of eating it in prohibition, eat it in permission,” including an aside about stringency regarding rabbinic doubt and nullification in a majority, and about differing positions among halakhic decisors.
Vows as something that has a permitted solution, and release by a sage according to the Jerusalem Talmud and the Rosh
The Jerusalem Talmud, as cited by the Rosh, asks how a vow can be considered something that has a permitted solution if release by a sage works retroactively such that the vow “never took effect,” in which case this is not a prohibition that expires with time but either a total nullification or an eternal prohibition. Rabbi Shimon Shkop explains that release by a sage is not mere iglai milta lemafre’a—a retroactive revelation—but rather “from now on retroactively,” in which the vow did take effect and then “was uprooted retroactively—but uprooted,” and the future changes the way we look at the past without making the action of the religious court in the past into something legally invalid. The text gives the example of lashes for violating a vow before its release and argues that the court acted properly at the time of action, so there is no place for compensation after the vow is released.
“From now on retroactively,” Kant, the age of the world, and a model of two time axes
The text brings Tuv Gaffen’s attribution to Kant of the claim that time is a form of human perception, and therefore “before there was a human being, there was no time,” and criticizes this by arguing that once there are “glasses of time,” the human being can also color the past in temporal terms and speak of “14 billion years.” It connects this to a model in which the same point in time can receive different values depending on the point of observation, and illustrates this through a condition in a bill of divorce or betrothal, where the question whether the woman is divorced depends on when one is looking, using the language of two time parameters, “at t and at tau.”
Preparation for condition and retroactive clarification as going back in time within a legal framework
The text states that the need for a coherent model of going back in time is important even if physically it is impossible, because on the legal and halakhic level similar structures are used. It declares an intention to enter into an analysis of condition and retroactive clarification and the relation between them in light of the conceptual preliminaries.
The laws of conditions, the condition of the sons of Gad and the sons of Reuven, and “the condition is void but the act stands”
The laws of conditions are derived from the condition of the sons of Gad and the sons of Reuven, and are formulated through rules such as a double condition, the affirmative preceding the negative, and the condition preceding the act, alongside substantive rules such as “one may not stipulate against what is written in the Torah.” When the condition is invalid, the rule is “the condition is void but the act stands,” as in a Nazirite who stipulates to become impure through contact with the dead, or one who betroths on condition that there be no obligation of food, clothing, and conjugal rights. The text adds a clarification in Jewish law that in the matter of food, clothing, and conjugal rights the issue is more complex, because “in monetary matters his condition stands,” and it also mentions disputes among the medieval authorities (Rishonim) concerning conjugal rights.
Tosafot on “she is hereby betrothed and his condition is void,” and the difficulty of full intent
Tosafot assumes that this is a double condition in order to show that the man explicitly made clear that if there would be obligations of food, clothing, and conjugal rights, “she is not betrothed,” and then asks how one can nevertheless say that she is betrothed. The text formulates the difficulty as forcing the creation of a betrothal that the man did not want, similar to the tension between mandatory legal requirements and the will of the parties.
Rabbeinu Tam: “he is merely exaggerating with words” as a solution
Rabbeinu Tam explains that stipulating against what is written in the Torah is like saying “on condition that you ascend to the heavens,” and therefore it is not a serious condition but merely “exaggerating with words,” and the act stands because the man intended to betroth and was only speaking extravagantly. The text brings the difficulty raised by Kovetz Shiurim, which distinguishes between “exaggerating with words” and “stipulating against what is written in the Torah” through the Talmudic case of “on condition that you eat pork,” and proposes a distinction according to which stipulation concerning a transgression is not necessarily stipulating against what is written in the Torah, but depends on how realistic it is that the other party will fulfill the condition.
Ri in Tosafot: a condition as a legal innovation that allows uprooting an act, not mere retroactive revelation
Ri explains that were it not for the derivation from the condition of the sons of Gad and the sons of Reuven, there would be room to say that a condition cannot cancel an act at all, and only the Torah innovated a mechanism by which a proper condition can uproot a legal effect. The text interprets Ri to mean that the condition is not mere iglai milta lemafre’a but a mechanism of “from now on retroactively,” in which the act takes effect now, and if the condition fails it is uprooted retroactively by force of speech that was given special legal power according to the Torah’s rules. It concludes that when the condition is invalid, the legal effect remains because the uprooting mechanism was not properly constructed, and presents the dispute between Rabbeinu Tam and Ri as a dispute about the very understanding of the mechanism of condition.
Conclusion and documentation note
The text concludes by saying that the continuation of the discussion will deal with conditions and retroactive clarification and with expanding the problem, and adds the note: Up to here was the lecture of Rabbi Mahfoud. Up to here was the lecture of Rabbi Michael Abraham, Thursday, the 28th of Tevet 5777, January 26, 2017.
Full Transcript
[Rabbi Michael Abraham] So we have time. We talked about causality, and we saw that there are three components in the causal relation. One component is the temporal relation, meaning that the cause precedes the effect in time. The second component is the logical relation: if the cause, then the effect. And the third component is the physical component, meaning that because of the cause, the effect occurs. We talked about “its beginning was through negligence and its end through unavoidable accident,” right? I mentioned that—because there too you basically see all three of those components. After that I talked about logical determinism and the paradox of conditioning, where in both cases you see logic’s indifference to time. Meaning, logic itself doesn’t depend on time. A statement about the future can already be true today, because the truth of a statement comes from comparing the content of the statement to what it describes. So if the statement says, “Tomorrow there will be a naval battle,” then assuming that tomorrow there will indeed be a naval battle, that statement is already true today, yesterday, always—it’s true. Why is it true? Because what it describes really matches what happens in reality; it doesn’t matter that it hasn’t happened yet. But the information about what will happen tomorrow does not exist. And what confuses people in the argument of logical determinism, what we just discussed—what is it? They mix up the logical relation with the causal relation, or physical causation. In other words, they don’t understand how it can be that an event that will happen tomorrow affects something today. How can it be that the occurrence of a naval battle tomorrow determines the truth value of the statement “Tomorrow there will be a naval battle” today? In other words, that statement is true today by force of an event that will happen tomorrow. Why is there no problem with that? Because that influence is not a causal influence. In other words, the future event does not affect what happens today—it determines the truth value of a statement. But the truth value of a statement is not an event. The truth value of a statement is a definition. So the statement is defined as true already today. Definitions can also be based on what will happen tomorrow. Okay? So that’s logic’s indifference to time. The logical relations don’t depend on time. We talked about the fact that the logical relation between cause and effect is the same logical relation as between effect and cause. That is, you can say “if A then B” whether A is the cause and B the effect, or A is the effect and B the cause. Therefore the logical relation is indifferent to the direction of the flow of time. That was the second topic. And in fact we also talked about the knowledge of the Holy One, blessed be He, right? We talked about free choice and the knowledge of the Holy One, blessed be He, together with Newcomb’s paradox, where basically the claim is—and the story of Osmo that I brought from Richard Taylor’s book—that in the end, information about what I will freely choose to do tomorrow cannot exist today. The truth value of the statement about what will happen tomorrow already exists today because that’s a definition, but the information about what will happen tomorrow cannot exist today, because if the information exists today, then tomorrow we don’t really have free choice. We talked about the knowledge of the Holy One, blessed be He, and choice, and the story of Osmo. And that is really exactly like logical determinism, which basically confuses the statement that the proposition is true today with the statement that the information that tomorrow there will be a naval battle already exists today. That’s not the same thing. To say that the statement is already true today is one kind of statement—it’s a statement on the logical plane. To say that the information already exists today is a statement about information. Information about an event that depends on choice and will happen tomorrow cannot exist today. So really, if I summarize for a moment for the sake of what comes next, then I would say this: there are basically several mechanisms of relation between a future event or future knowledge and a present state. The simplest case is a case where there is information that already exists today; I just don’t know it. A child is born to me. I don’t know whether it’s a boy or a girl because I haven’t yet gone into the delivery room. An hour later I go into the delivery room and see that it’s a boy. Of course it then becomes clear to me that this was true already an hour earlier; I just didn’t know it. There’s no miracle here, right? In other words, retroactive clarification in that sense—I’ll still speak about the issue of retroactive clarification; this is exactly the conceptual preparation for it—but here there’s no problem at all. There was simply information that I lacked, and now it reached my awareness. But of course that information was true before—not only was it true before, it also existed before. That is, the information existed; not only was the claim “A boy was born to me” a true claim—that’s obvious—but also the information that it was a boy existed. Okay? That’s the first case. The second case is a situation where there is a future event, a situation where there is a future event that I don’t know today, and when it happens then I’ll know. Now, about that situation, as I said earlier, the truth value already exists today, but the information does not. That is, the event will happen in the future. But here we need to distinguish between two situations. One is when the future event is an ordinary event, a physical event. In a physical event there is room for the claim that the information also exists today, not just the truth value. Because overall the laws of nature are deterministic, meaning that if I knew everything that was happening now and I did the calculation, I would know what will happen tomorrow—assuming, say, we’re talking about whether it will rain tomorrow. Right? So the fact that I don’t know is simply because the calculation is complicated, but in principle that information already exists today; the laws of nature could reveal it to me if I were smart enough and had enough computational power and enough information. In contrast, if the future event is an event that depends on choice, then there really is a problem, as we discussed in the previous lecture: if the future event depends on choice, then the information about it does not exist today. So in fact I’ve now distinguished between three situations. One situation is where the information exists today and the event has already happened, okay? I just don’t know about it. So after some time the information reaches my awareness, and of course when I know it, I know that it both existed and was true yesterday. The second situation: the event is a future event, but a natural event. If it’s a natural event, then there is definitely room for the claim that information about it exists today. Why? True, no human being knows it, but the Holy One, blessed be He, does know it—because if you know all the data and you know how to perform the calculation, in principle you know whether it will rain tomorrow or not. This reminds me that when I lived in Bnei Brak, I noticed—this was when Yated Ne’eman had just started coming out, and it wanted every subscriber, and Rabbi Shach was going around after everyone to get them to sign up for Yated Ne’eman. Anyway, I remember that every time the weather forecaster was wrong, there was international rejoicing in Yated Ne’eman. There was tremendous joy. Because finally it had been proved that these people had no idea what they were talking about—that you can’t predict this in advance. Because the attitude was that if you can predict it in advance, that can’t be right, because after all the Holy One, blessed be He, determines whether it will rain or not, and besides, it says, “And I will give your rains in their season, if you walk in My statutes”—meaning, if we do commandments then rain will fall, and if not then how can you predict it in advance? So the moment the weather forecaster gives a forecast ahead of time, that’s practically heresy. So every time he failed, there was a party in Yated Ne’eman. But forecasting keeps improving. In the end they’ll have to face the facts: forecasting keeps improving, and in the end it’s probably just a result of computational complexity. Meaning, the more we know and the more we understand, the more we’ll be able to calculate it in advance, because it’s a natural event. A natural event we know how to calculate in advance. If you ask me theologically how this works with the verses—that’s a topic for another lecture.
[Speaker B] “For the fallen one will fall”—also what the midrash says—
[Rabbi Michael Abraham] It still doesn’t mean that Newton’s laws, gravity, are not correct.
[Speaker C] The question is why.
[Rabbi Michael Abraham] Meaning, if in fact the one who falls has to fall because he deserves it, then what does that have to do with Newton’s laws? So people say, if he sinned then he’ll fall, and if not then not—what does that have to do with Newton’s laws? Newton’s laws work the same whether you sinned or didn’t sin. There too there’s choice, also that same butterfly-wing flap of choice—whether not to make a guardrail, not to go up on the roof carefully, or to make a guardrail, meaning the homeowner should make a guardrail. No, but I’m saying simply, it doesn’t fit together. We once talked about this whole issue of parallel explanations—
[Speaker B] About the apple that fell on the head.
[Rabbi Michael Abraham] Yes, exactly.
[Speaker D] So how does this analysis, regarding truth value of past and future, sit with quantum theory? Because there when you measure, the wave function collapses. So what’s the truth value before the measurement, or regarding the future?
[Rabbi Michael Abraham] No, in quantum theory that’s an open question. Is it really a retroactive clarification or not? There are different claims about that. I’m also not entirely up to date on where exactly that issue stands right now, but as far as I remember it’s an open question whether collapse on the past is possible—or whether the collapse only happens from that point onward.
[Speaker D] But in the case of choice—because even regarding the future you could say that right now you don’t know what the wave function is, but when you measure—that is, the moment of decision—then it collapses.
[Rabbi Michael Abraham] Then it collapses. So what’s the problem? Then nothing collapses backward.
[Speaker D] So I’m saying, true, there’s determinism—I mean, I think basically there is determinism—but still you can have a situation where right now you know all the data and you still don’t know what will happen in the future because the collapse is not…
[Rabbi Michael Abraham] There is no determinism.
[Speaker D] So one could also say that in reality, in quantum theory…
[Rabbi Michael Abraham] Of course, in quantum theory there is no determinism. That’s the whole problem with quantum theory—that there is no determinism. But quantum theory is in small systems. Right now I’m talking about events on ordinary scales, on the scales we know. There there is no quantum theory. Okay? But even there, that’s not choice—it’s randomness. I talked about this in the book The Science of Freedom. In my opinion, that won’t help for choice. Even though once someone came to me—Rabbi Zaini’s replacement at the Technion, I forgot his name, he’s the rosh yeshiva there in Haifa. He’s also some kind of doctor of physics. So he once came to me and claimed that quantum theory actually could—he had objections to my book. So we talked, and he claimed that quantum theory could indeed help explain choice. I didn’t agree with him all that much, but truthfully there were interesting things in what he said. I need to sit down sometime and work it through more thoroughly, but at least as far as I think—Doron something, Doron, I don’t remember, something. Anyway, I don’t think it helps for choice. But no matter—for our purposes we’re talking about large scales, so without quantum theory. Good. The third level is when the future event depends on choice. If the future event depends on choice, then not only that… I mean, then the truth value of the statement exists today, but the information does not. Okay? The information about what will happen in the future cannot exist today; we discussed that with Newcomb’s paradox. In other words, it cannot be that the information exists today—not even the Holy One, blessed be He, knows it. Okay? By the way, maybe before I continue, there are situations in which even the Holy One, blessed be He, does not know—not because it’s a future event. In a moment I’ll show the connection, later on I’ll show the connection, but think about a case—this is also connected to quantum theory—think about a case. The Talmud talks about someone who betroths one of five women. He betrothed through the father, let’s say, okay? The father has five daughters. Now I give him a perutah and I say: one of your daughters is betrothed to me. But I don’t care which one. They’re all nice, everything’s fine, it doesn’t matter to me which. One of them. Okay? I didn’t define which one. So that’s the topic of betrothal not fit for intercourse, in the dispute between Abaye and Rava, because in such a situation I am forbidden to have relations with any one of them, since she may be my wife’s sister. If she is my wife then it’s permitted, but it may be that one of the other five is my wife, in which case this one is my wife’s sister, and I’m forbidden to her. Now since all five are in doubt lest they are my wife’s sister, I’m forbidden to any of them. So because of that, even the one I betrothed, I would also be forbidden to, because out of doubt I don’t know—maybe she’s my wife’s sister and not my wife. So that’s betrothal not fit for intercourse. Do you understand? Betrothal not fit for intercourse—so there’s a dispute between Abaye and Rava whether that is valid betrothal or not.
[Speaker E] But you need to give a bill of divorce to all five.
[Rabbi Michael Abraham] Yes, you need to give a bill of divorce to all five. According to the one who says that betrothal not fit for intercourse is valid betrothal, you need to give a bill of divorce to all five. According to the one who says that betrothal not fit for intercourse is not betrothal, then nothing happened. And then of course you can have relations with any one of them, because none of them is betrothed and none of them is your wife’s sister.
[Speaker D] So it returns to a state where it is fit for intercourse. Right?
[Rabbi Michael Abraham] Then it returns to a state where it is… no, it’s fit for intercourse only because there was no betrothal. So it’s not a loop; it stops there. Now Rabbi Shimon Shkop asks what the status of that situation is. Let me give you an example. Say these are two sisters, not one out of five—just two, for the sake of discussion. Then we basically have a doubt about each one, right? A fifty-percent doubt: either she is my wife or she is my wife’s sister, for each one. Okay? According to Maimonides, a Torah-level doubt is treated leniently at the Torah level; one only has to be strict rabbinically, right? So basically at the Torah level this would be permitted for intercourse. I could have relations with her: perhaps she is my wife’s sister, perhaps not—I could have relations with her. Okay. There are people who want to say that in forbidden sexual relations Maimonides doesn’t mean to say that a doubt is treated leniently, but that’s not true; those are all inventions that in my opinion come from a mistake. For Maimonides, every doubt is treated leniently. There’s no difference.
[Speaker E] So the rule that a Torah-level doubt is treated stringently is only rabbinic?
[Rabbi Michael Abraham] Yes, according to Maimonides. That’s clear. It’s just that some people want to say that when Maimonides said it’s rabbinic, that’s not true regarding sexual prohibitions, severe prohibitions, prohibitions punishable by death. Now, since one can ask about Maimonides, then what exactly makes this betrothal not fit for intercourse? After all, each woman is only possibly my wife’s sister. Out of doubt I’m allowed to have relations with her, because a Torah-level doubt is treated leniently—only rabbinically am I forbidden. So maybe rabbinically it’s not fit for intercourse, but at the Torah level it is fit. Fine, so basically she’s my wife, and I need a bill of divorce according to all opinions; it just doesn’t work rabbinically. Actually one could somehow have resolved it by saying that even if rabbinically it’s not fit for intercourse, then it’s not betrothal, because at the end of the day I’m forbidden to have relations with her. As long as I can’t realize it in practice, then it’s not betrothal. Maybe. But Rabbi Shimon Shkop wants to argue—and he doesn’t even raise that question. That question can also be answered according to what he says. He says something else. He makes the following claim, and it’s certainly correct regardless of the objections. He says: this situation is not a doubt. There’s no doubt here at all. A doubt is a situation where, say, I sent an agent to betroth a woman for me from among these two sisters. I sent someone to betroth a woman, and the agent died, and both sisters and the father all died—some terrible disaster happened there. Okay? Now I don’t know which of the two sisters was my wife. That is a doubt. Okay? The question is whether, because there is one who was betrothed to me and the Holy One, blessed be He, knows who she is, but we don’t know—there is information missing for me—that’s called a doubt. But in our case, when I betrothed one of two women and never defined which one of the two, there is no doubt here at all. Even the Holy One, blessed be He, doesn’t know who my wife is. There isn’t one woman who is my wife. It’s undefined. It’s not that such information exists but is hidden from me—there is no such information at all. This is not a state of doubt at all. This is not a state of doubt; it’s a state of vague reality, not doubt. Reality itself is not fully defined. But it’s not that I’m in doubt. When I’m in doubt, that means reality is clear, only I don’t know what it is. But here reality itself is vague, not fully defined. It’s not because of me—even the Holy One, blessed be He, does not know. So therefore here, for example, there is room to say that according to Maimonides, certainly we would not rule leniently. In a doubt we rule leniently; here she is certainly my wife’s sister. She is certainly my wife’s sister in a faint way. She is half my wife and she is half my wife. So she is half my wife’s sister and half my wife’s sister. But both of them are certainly my wife and certainly my wife’s sister. Each of them—just each in a faint way. Yes? It’s really exactly like quantum theory—like the cat is alive and dead. So she is both my wife and my wife’s sister, like Schrödinger’s cat. And in such a situation even Maimonides would say that I am forbidden to have relations with her. Why? Because she is certainly my wife’s sister. This is not a doubt. It’s just that she is my wife’s sister in a faint way. Meaning, if I had relations with her it might be a lesser prohibition. But it’s certainly a prohibition; it’s not a doubt, so there’s no room for leniency here. So it’s a less severe prohibition. Okay. So this is not a state of doubt—it’s a state of certainty. Mathematically, when dealing with doubt one uses statistics and probability. When dealing with vague reality, one uses what is called fuzzy logic. In other words, there is a logic of vague states. It’s not a matter of doubts; the states themselves are vague. Yes, like the heap paradox, or all the states where—well, I’ve already talked several times about the heap paradox. And basically the claim is that, say, a heap of five stones is 0.2 of a heap. In other words, the answer to the question “is this a heap or not?” is not zero or one; there’s an entire continuum of answers. So because of that, here too there is fuzzy logic, and it’s not a doubt whether this is a heap or not a heap. It is certainly a faint heap. Right? So it’s exactly the same thing. Therefore the way to deal with it is not statistics—absolutely not statistics. It’s not that there is a 0.2 chance that this is a heap; that’s statistics. Here it is certainly a heap at level 0.2. Okay? That’s not statistics; that’s what is called fuzzy logic. Okay. For mathematicians, statistics is an example of fuzzy logic, but philosophically I think these are different concepts. So here there really is a state of doubt that does not stem from the future at all. Earlier we talked about a situation where, because the future has not yet happened, I am now in a doubtful state. And that doubt is an essential doubt, meaning the information does not exist now. Here I’m saying: all the information exists, but the information itself is not complete.
[Speaker F] Why is this called betrothal not fit for intercourse? There isn’t any betrothal here that has actually taken hold in one woman.
[Rabbi Michael Abraham] נכון, but the betrothal—
[Speaker F] —this betrothal—
[Rabbi Michael Abraham] —is not fit for intercourse.
[Speaker F] No, but the betrothal—
[Rabbi Michael Abraham] —has to take effect on one woman.
[Speaker F] No, they—
[Rabbi Michael Abraham] —are faint; the betrothal is faint on each of them.
[Speaker F] And that—
[Rabbi Michael Abraham] —is a deficiency? Why should there be faint betrothal on each one of them?
[Speaker F] You have to betroth a woman—betrothal that takes hold in one woman.
[Rabbi Michael Abraham] From where do you get that? There is such a thing as faint betrothal. Otherwise say in every case: why possibly pork? The Merciful One said definitely pork and not doubtful pork—or complete betrothal the Merciful One said, and not faint betrothal. You need an exposition for that; you can’t just say it on your own. Not in the Torah—but why betroth in a way that is not fit for intercourse? Because the Talmud says that that reasoning is not correct.
[Speaker F] If after all faint betrothal is okay, then what’s the issue?
[Rabbi Michael Abraham] Just as every thing can be doubtful, there can be something faint; just as there is full betrothal, there is faint betrothal. And no separate act was done—he simply did it regarding an undefined woman.
[Speaker F] The Talmud isn’t bothered by that point. The only thing that bothers it is that as a result this becomes not fit for intercourse, and therefore there isn’t even faint betrothal here. But if not for that, then according to the one who says that betrothal not fit for intercourse is valid betrothal, then yes, it really does take effect in a faint way. He has no problem with that on the conceptual level. Okay?
[Rabbi Michael Abraham] By the way, that’s how Jewish law is ruled—that betrothal not fit for intercourse is indeed valid betrothal in practice. Yes, exactly, the Jewish law follows Abaye. In any case, this too is a state of doubt—or something similar to it—and that or something like it is the state of doubt regarding a future event that depends on choice. A future event that depends on choice is not a situation where the information is known and I just don’t know it; rather, the information does not exist. There is no information. It’s not exactly the same as what I said earlier, but it’s similar, because this too is a state where I do not know—but what I do not know is not because I lack information about reality; that information has not yet been created. It doesn’t yet exist at all. Okay, so that’s the third situation. So in short, we talked about information about an event that already happened, where in such a case both the information exists and the truth value of the statement exists; I just don’t know it. There is a situation of an event that has not yet happened but is a natural event. In that case, the simple conception at least—the deterministic one, let’s say, at least if there is no quantum theory or things like that—then again, both the truth value exists and the information exists; nobody just knows it. The third situation is where the future event depends on choice. If the future event depends on choice, then the truth value of the statement exists, but the information does not exist, because there is no information about that thing.
[Speaker E] In the second point, where you say an event is, say, natural and therefore the information is known—let me give you an example where it’s not natural information. Let’s say whether a dog will go from here to there. Fine? I don’t know if that’s natural, but it could be that the Holy One, blessed be He, says in advance, I’ll make it such that this is what happens, because I—
[Rabbi Michael Abraham] רגע, so what’s called natural and what’s called not natural?
[Speaker E] What, if it’s his choice? I didn’t understand. Yes, He tells the dog—
[Rabbi Michael Abraham] No—if the dog has choice, then it’s the same as a human being. What difference does it make? Oh, you’re saying if it has no choice then it’s entirely natural. The dog’s physiology is also part of nature. It doesn’t matter—something caused it to decide to go there, and therefore it went. So someone who knows everything that’s going on in the dog’s brain can know whether it will go or not. There’s no problem with that. It’s no different from any process—
[Speaker E] How do you define natural? Everything that has no power of choice?
[Rabbi Michael Abraham] Is that it? Fine, it doesn’t matter. Define it however you want. But I’m saying: if it has choice, then it’s like a human being—that’s a future event that depends on choice. If it doesn’t have choice, then it’s like climate, like anything else: simply a natural event, and whoever knows all the information can know whether it will happen or not happen. The Holy One, blessed be He, can know; for us it’s hard, it’s complicated, we don’t know enough. Okay.
[Speaker C] Someone who is a determinist would include human beings too.
[Rabbi Michael Abraham] Correct. Someone who believes in determinism, from his point of view a human being is also the same thing, so in fact there is no third level. Yes, exactly. Now there is a fourth situation, and the fourth situation—which on the face of it is impossible, but that’s where I began—is where the future event determines the present state. Determines the present state causally. I’ll give you an example. The Talmud in tractate Nedarim talks about a vow as something that has a permitted solution. “Something that has a permitted solution” means a prohibition that expires after a certain amount of time. Say, for example, muktzeh. Muktzeh is forbidden on the Sabbath or on a Jewish holiday, and the next day it is permitted; after the Sabbath it is permitted. Now there is a rule regarding something that has a permitted solution: we are stricter with it than with an ordinary prohibition. Why? The simple conception—there’s a bit of dispute about this, but the simple conception is: instead of eating it in prohibition, eat it in permission. Why permit it to you now? Wait until tomorrow and there won’t be any prohibition at all. For example, when you are in doubt, okay? A doubt concerning a prohibition of muktzeh. Okay? So a doubt concerning a prohibition of muktzeh is, ostensibly, a rabbinic doubt. Muktzeh is rabbinic, aside from Rabbah’s view there and Rashi in Beitzah there that it is Torah-level, but simply speaking it is a rabbinic prohibition. So a doubt about a rabbinic prohibition is treated leniently. So basically I should be able to move the muktzeh object—if it’s only doubtful muktzeh, then I should be able to move it on the Sabbath. But they tell me no: since after the Sabbath it will in any case be permitted to you, then why permit it to you now? Wait until after the Sabbath and do it nicely without any concern. Okay? So that’s the law of something that has a permitted solution. Why? Because wait till tomorrow—you won’t need to rely on nullification, you’ll be able to eat it permissibly. Why rely on nullification?
[Speaker D] If I’m not mistaken, does that also apply to muktzeh?
[Rabbi Michael Abraham] No—there’s a dispute in Tosafot, I think, whether this applies to muktzeh or not; I just brought it as an example. In any case, just parenthetically, this is an interesting point, because this reasoning of “instead of eating it in prohibition, eat it in permission” says that being lenient in a rabbinic doubt, or eating something that was nullified in a majority, isn’t exactly glatt. So someone who wants to be strict with himself—it’s appropriate that he do so. If he doesn’t, fine, it’s permitted halakhically. But if someone is strict, blessing should come upon him. In other words, this is not something astonishing; this isn’t a case of “one who is exempt from the matter and does it is called a fool.” Because the fact is they tell us that if I have an option not to rely on that, then it’s preferable not to rely on it, right? They tell us that even if it’s a rabbinic doubt, what’s the problem? Eat it? What do you mean, “instead of eating it in prohibition, eat it in permission”? I’m already eating it permissibly now—a rabbinic doubt is treated leniently. Fine. Now this goes against the words of some halakhic decisors who want to say, what are you talking about—a rabbinic doubt, you may even eat it from the outset, and nullification in a majority—someone who worries about that, there is concern about his halakhic reliability. There are statements like that. Mahar”i Yom Tov talks about this a bit—that it is a full permission; nullification in a majority is actual permission, it is not… From here it seems to me we see not that way.
[Speaker D] Here it seems that specifically if you understand that if it doesn’t apply to muktzeh, then it applies to food, then every rabbinic doubt really is lenient—but maybe only in food there is room to be strict.
[Rabbi Michael Abraham] No, not because muktzeh is not food. There’s a special rule in muktzeh because it branches off from a Torah prohibition, and therefore they were more stringent with it. Those are various other discussions; it’s not because it’s food or not food. “Something that has a permitted solution” is not specifically about food, I think.
[Speaker D] Are there examples not involving food where something has—
[Rabbi Michael Abraham] I’d have to look, but I’m almost sure there are. I don’t think it’s only about food.
[Speaker D] Kashering utensils.
[Rabbi Michael Abraham] What?
[Speaker C] Kashering utensils. Yes, what was there? If a utensil that isn’t pure gets mixed in—
[Speaker D] Or something—maybe that also applies to food utensils.
[Rabbi Michael Abraham] In the end it comes down to food. Meaning, the prohibition with a utensil—the prohibition is to eat from it; do whatever you want with the utensil as long as you don’t eat from it. Unless it’s cooking—in the case of meat and milk there’s also a prohibition of cooking. If it has absorbed meat and milk, then it’s also forbidden to cook with it. Fine, I don’t know, but I’m almost sure—I’d have to check, I don’t remember right now. Okay, so I’m closing the parenthesis. So what actually happens? The Talmud says that vows are something that has a way to be permitted. Why is it something that has a way to be permitted? Because you can go to a sage and ask him to release you from the vow. So the Jerusalem Talmud asks—the Rosh brings this there, the Rosh cites it in the name of the Jerusalem Talmud, in his rulings on tractate Nedarim; there’s also the Rosh’s commentary on Nedarim—in his rulings on Nedarim he cites the Jerusalem Talmud asking: what do you mean? When you go to a sage who releases the vow, he releases it retroactively. It’s based on an opening and regret; that is, he finds that the vow never took effect. Right? If so, then this is not something that has a way to be permitted. If you went to a sage, then it was never forbidden. If you don’t go to a sage, or he decides not to release you from it, then it will always be forbidden. Something that has a way to be permitted means something that is forbidden, and then a certain stage arrives from which on it becomes permitted. But a vow isn’t like that. If you went to a sage, then there never was a vow. If you didn’t go to a sage, or he didn’t release it for you, then that vow is eternal. So in what sense is a vow called something that has a way to be permitted? Go to a sage—go. If you didn’t go to a sage, then it’s like any other prohibition; what’s the difference? So the Jerusalem Talmud and the Rosh there say something that Rabbi Shimon Shkop explains this way. It’s not completely clear to me that that’s what they mean, but that’s how Rabbi Shimon Shkop explains it, and Rav Shmuel discusses this and brings other examples; Rabbi Shimon uses this in many places. He wants to say that release by a sage is not merely revealing a fact retroactively. We understand that when I go with a vow to a sage and he releases me from the vow, what really becomes clear is that there never was a vow. That means—which of the categories I mentioned earlier does releasing vows belong to? In principle it belongs to the first category. In fact the reality was already true today; I just didn’t know it. After I came to the sage, it became known to me—but what became known to me is that it had always been true. Right? In other words, ironically, even though a future event determines the state of affairs now, actually it doesn’t determine the state of affairs now; it only reveals to me the state that was already known. The Holy One, blessed be He, already knew this wasn’t a vow. He knew that I would go to a sage and all sorts of things like that. I didn’t know, so it became known to me only when I went to the sage. But now I know what had always been true. So that really belongs to the first category. Rabbi Shimon Shkop argues that this is not correct. Release of a vow is not merely revealing a fact retroactively. Rather what is it? It is from now on, retroactively. What does “from now on, retroactively” mean? It means this—I’ll try to formulate it a bit differently. Say I violated this vow and ate it. Now a religious court should flog me: “he shall not violate his word,” I transgressed it, so the religious court flogs me. Then I went to a sage and he released me from the vow. So if it becomes clear retroactively that the vow never existed, then the religious court flogged me in violation of the prohibition against injuring—meaning it’s forbidden for them to flog me. Right? In fact, according to this, a religious court could never flog anyone for vows at all, because I could always go afterward to a sage and he’d release me from it, and then it would turn out they had simply injured me for nothing. Okay? No—the religious court can flog me for the vow, and even if I afterward went to a sage and he released it, the religious court can still have flogged me, could have flogged me. After the sage released the vow, then the religious court will no longer flog me. Meaning, what’s happening here is that from the moment the sage releases it, I look at the past differently—but it didn’t change the past; it changed my perspective from the future, how I see the past. That’s “from now on, retroactively”: from now on I see the retroactive past differently, but it didn’t really change the retroactive past. What—
[Speaker D] How is that different from plain retroactive effect?
[Rabbi Michael Abraham] If it were plain retroactive effect, they could never have flogged me.
[Speaker D] And here too they can’t.
[Rabbi Michael Abraham] No, they can’t flog me after the release, but before the release they can. Before the release I violated a prohibition; from the perspective of that time, I violated a prohibition and they flogged me. Okay? From that point on, when people look back at the past, then I didn’t violate the prohibition. Maybe I’ll give you an example—I already mentioned this, I don’t remember—in the name of Tuvia Gefen, about the age of the world. I mentioned that, right? So that’s exactly an example of this issue. Tuvia Gefen says that all these questions about the age of the world don’t arise because Kant already taught us that space and time are forms of human perception, and before there was a human being there was no time. So the world was created when the human being came into being; before that there was no “before”—that is, the concept of time didn’t exist when there was no human being. So that’s how he proposes solving the problem of the age of the world. Fine—today they think human beings existed earlier too, but never mind, that’s what he wants to claim. Now I say—I think he’s wrong; in any case he’s wrong. Why? Because after the human being is born, he puts on glasses of time, and now looks at the world through glasses that also contain time. Meaning, I arrange things according to the times they happened and things like that. I can also look at the past through these glasses, and then I’ll ask myself how old the world is, and I can answer myself: 14 billion years. True, before these glasses were created no one could use them, so there were no concepts of time and there was nothing to talk about. But after these glasses were created, my view of the past is already colored by time. So now I already look at the past in that way. So this happens after these glasses are created: I see the retroactive past differently. But that doesn’t mean there was time then; there wasn’t time then. Time was born with man. But after he was already born, I can look in terms of time even at what was before him. It’s inconceivable that I couldn’t ask when my grandfather was born. Forget the age of the world—let’s talk about me. If time is a form of my own perception personally, and if it belongs to the human being, then each person has his own time; your time doesn’t help me. When I ask when my grandfather was born, can’t I ask that because I was born and my time was born only when I was born? Of course I can. Through the glasses I received at birth, I now look at the past and ask myself how long before me my grandfather was born. Right? There’s no problem with that. What is this really saying? It is exactly an example of “from now on, retroactively.” “From now on, retroactively” means that there can be a situation where from now on I look at the past and see it differently—even the past. But not that the past itself really was different; rather, the perspective on the past is different. And if you remember, when I began this series about time, I said that time travel is basically something like this. Time travel really requires two time axes, and that basically means that at the same point in time I can have two different perspectives on that same point—just like with a condition. I said, right, that with a condition I might say: I divorce a woman on condition that she not drink wine. Now I ask myself: is the woman divorced? It depends—depends when you look. If you look after a week, then meanwhile she’s not divorced. If you look after three weeks, when she has already not drunk wine for two weeks, then already at that same time you looked at before, she really was divorced. So at that time was she divorced or not? It depends from where I’m looking at that point in time. I can look at that point in time either from being at that very point itself, or from a future point in time, and then I examine that point and it looks different to me. In other words, the value of the function depends on two values of the time axis—on t and on tau. We talked about there being two time axes, and therefore at one time point there can be several values depending on from which—
[Speaker C] And how is it that way with a vow? In a vow, the sage reveals that it was a mistake.
[Rabbi Michael Abraham] No—the claim is: no. The vow—he doesn’t reveal that it was a mistaken vow; he determines it. That’s also why without a sage it doesn’t help. Seemingly, why do you need a sage? If the vow was mistaken, then true, maybe only a sage can determine that, but in principle you don’t really need the sage. If it really was mistaken, then there is no vow. What difference does it make whether I went to a sage or not? So now, when I stated the vow, apparently I’m only in doubt, because if the sage looks and says there was a mistake there, then there was no vow, and if not, then not. But no—as long as the sage hasn’t looked, there isn’t even a doubt; it’s a vow. Meaning, the sage here has a constitutive role; he doesn’t just reveal. So that really means it’s not true that it simply turns out that it never was. Otherwise you wouldn’t need a sage; you would only need to know what the truth was. The sage could help me know what the truth was, but he wouldn’t determine it. But no—the sage determines. That is exactly the proof to the contrary. It means that the future event really determines what was in the past—determines, of course, with respect to how from now on we will look at the past. Okay?
[Speaker E] Can you say the same thing about annulment of betrothal? What? The same thing. Meaning, suppose a woman says: look, in retrospect I obviously want to be divorced, but don’t now determine for me that my whole life I was in, let’s call it, promiscuous relations—I don’t… Suppose they annulled the betrothal—
[Rabbi Michael Abraham] She can say whatever she wants; they decide. What do you mean, she says?
[Speaker E] No, because if we go according to this approach, maybe they
[Rabbi Michael Abraham] decide to annul the betrothal.
[Speaker E] If we go according to this approach, maybe they annul the betrothal from now on and that’s it, but everything that was until now remains as it was?
[Rabbi Michael Abraham] That has nothing to do with what the woman says. You’re just asking in general: whenever someone betroths, he does so subject to the rabbis’ consent, and when the rabbis annul the betrothal, is that “from now on, retroactively,” or merely revealing a fact retroactively? Right. Since the mechanism is a mechanism of condition—that’s at least how it’s generally understood, right? We betroth subject to the consent of the sages, and therefore if they agreed, then it takes effect, and if they did not agree, then the condition is voided. So really this is a mechanism of condition. So what you’re asking is not specific to annulment of betrothal; you’re asking generally about conditions. What does a condition do? We’ll talk about that in another moment, okay? Rabbi Shimon argues that there too it is “from now on, retroactively”; with conditions too it is “from now on, retroactively.” Yes.
[Speaker D] Also in the example you gave about the eruv that they place at two ends—
[Rabbi Michael Abraham] That’s selection by clarification; we’ll talk about that even later. We’re going to talk about condition and about clarification by later determination; that’s where I’m aiming all this conceptual preparation.
[Speaker D] But regarding the vow you mentioned: if someone violates the vow before he releases it, and after he releases it, is he entitled to compensation for the flogging he received?
[Rabbi Michael Abraham] No. Because at the time the religious court did it, they did it lawfully.
[Speaker D] Even though he wasn’t really liable, meaning—
[Rabbi Michael Abraham] From a later perspective, when we look back there, he wasn’t liable. But the religious court did it based on how things looked at that time. So I mean, I impose compensation on them if they acted improperly—but they did act properly. Because at the time they did it, that was the correct answer. Now, so I return to what Rabbi Shimon Shkop explains: why is a vow really something that has a way to be permitted? Because he argues that even when I go to a sage and he releases the vow, it’s not that it became clear that there had never been a vow. The vow was forbidden, and now that prohibition was uprooted—but it was uprooted retroactively. But it happened; that is, the vow took effect and was uprooted—not that it became clear that it never existed. Rather, the vow took effect and was uprooted, uprooted retroactively but uprooted. Okay? And therefore it is called something that has a way to be permitted. There’s the practical difference. There are many more practical differences regarding something that has a way to be permitted, but this is one of them.
[Speaker D] If I have a double doubt regarding a vow, then am I obligated to release it? Do I have to go to a sage? Meaning, if I have a double doubt regarding a vow, then seemingly it’s a Torah-level double doubt and I can be lenient, right?
[Rabbi Michael Abraham] Ah, and you’re saying: since it’s something that has a way to be permitted, then right—yes. Yes. So really… I’m trying to remember… I don’t remember if there’s doubt with a vow, double doubt—I don’t remember right now; abbreviated expressions of vows, there’s a topic of doubtful vows. Double doubt—I’d have to check. But simply speaking, yes, that’s what emerges from the Jerusalem Talmud. Not the Jerusalem Talmud; really this is also in the Babylonian Talmud. That a vow is something that has a way to be permitted—that’s also in the Babylonian Talmud. The Jerusalem Talmud only asks why it is something that has a way to be permitted. Anyway, why am I saying all this? Because this is already a fourth level. We had three levels; this is the fourth level. And on this fourth level, the future event doesn’t create information from then on; rather, it creates a backward-looking perspective on the past, a different perspective, and maybe it even creates this causally. Meaning, the future event causally brings about what happened in the past. That is already totally different from logical determinism, where I said that the backward causation is not causal—it’s only logical causation because we create—
[Speaker E] Legally, let’s call it.
[Rabbi Michael Abraham] Fine, legal information. Yes. Everything is legal. Okay. As I already said—I began this series by saying that it’s important to arrive at a coherent description or model of time travel, even if physically it isn’t possible, because on the legal level we talk about it, and if it isn’t consistent then even legally you can’t talk about it. Physically maybe it isn’t possible, maybe it is possible, but at least it has to be properly defined; otherwise you can’t talk about it even on the legal level. So here—you see, this is the legal-level discussion of the issue. Now what I want is really to show how this works in conditions. I don’t know, something here spilled over for me—
[Speaker E] Onto another page.
[Rabbi Michael Abraham] Yes. There are more pages off to the side. There’s a continuation here. This spilled over for me. The Talmud—I’ll just introduce a bit. What I now want to do is really enter into the subject of condition and clarification by later determination, and after that, the relation between them. In light of the conceptual introduction I’ve given until now, we’ll try to understand how a condition works, how clarification by later determination works, and what the relation is between clarification by later determination and condition, because these are really two topics in which we talk about going backward in time. Okay? So, the concepts of conditions are learned from the condition of the children of Gad and the children of Reuven. The Talmud basically says that a person can stipulate that a legal effect he creates will depend on various conditions. But there are rules—how do we formulate these conditions? What are called the laws of conditions. The laws of conditions mean how exactly the condition has to be formulated. Most of the laws of conditions deal with the question of how to phrase the condition. So the best-known rule is that you need a double condition. You say: if you cross the Jordan and go out to war, then you’ll receive your inheritance; and if you do not cross, then you won’t receive your inheritance. That’s a double condition. Beyond that, the affirmative must come before the negative: first, if you cross, you’ll receive; if you do not cross, you won’t receive—and not the reverse. And also, the condition must come before the act. Meaning, you have to say: if you cross, you will receive the inheritance—not: you will receive the inheritance if you cross. Fine, none of this really matters; these are just various rules for how to formulate the condition correctly. But there are also substantive rules. For example, you can’t make a condition against what is written in the Torah. Say I say: I am a Nazirite on condition that it be permitted for me to become impure through the dead. Fine? There’s no such thing. A Nazirite is forbidden to become impure through the dead—you’re making a condition against what is written in the Torah. Or: behold, you are betrothed to me on condition that you have no claim against me for food, clothing, and marital relations. In principle that is making a condition against what is written in the Torah, because a man owes his wife food, clothing, and marital relations. Now what happens if someone made a condition but didn’t do it according to the accepted rules? He didn’t put the condition before the act, or the affirmative before the negative, or he made a condition against what is written in the Torah. So the Talmud says: the condition is void, but the act stands. Meaning, if I say: I am a Nazirite on condition that it be permitted for me to become impure through the dead, then I am a Nazirite and it is forbidden for me to become impure through the dead. The condition is nullified—that it should be permitted for me to become impure through the dead—and the Naziriteship remains. Right? Or: behold, you are betrothed to me on condition that you have no claim against me for food, clothing, and marital relations. Then the woman is betrothed to me—the act stands—but the condition is void. Meaning, my attempt to exempt myself from food, clothing, and marital relations doesn’t work; it is nullified. Okay? That is the rule. Tosafot asks about this: how can that be? Look at Tosafot beginning with “behold she is,” your third source. “Behold she is betrothed and his condition is void.” Tosafot asks—the truth is, just to complete the picture so no mistake comes out here—according to Jewish law, “behold, you are betrothed to me on condition that you have no claim against me for food, clothing, and marital relations” does work. It is making a condition against what is written in the Torah, but here it is a monetary matter, and in monetary matters the condition stands. This is a dispute between Rabbi Meir and Rabbi Yehudah, and the condition stands. But again, the condition stands only because it is a monetary matter. In principle, such a thing is called making a condition against what is written in the Torah. As for marital relations, the Rashba asks: that is seemingly not monetary. So he argues that yes it is, because it is the woman’s right to receive marital relations, and that right is like a financial right; she can waive it, and one can make a condition about it. Some authorities indeed omit marital relations. It’s a dispute among the medieval authorities. In any case, Tosafot asks as follows: “Behold she is betrothed and his condition is void.” Necessarily this is speaking where he doubled his condition. Yes, we’re talking about a case where he doubled the condition. He said to her: if you have no claim against me for food, clothing, and marital relations, then you are betrothed to me; and if you do have a claim against me for food, clothing, and marital relations, then you are not betrothed to me. He says to her: if you have no claim against me for food, clothing, and marital relations, behold you are betrothed, and if not, do not be betrothed. Right? Why does he put the food, clothing, and marital relations before the betrothal? Because the condition has to come before the act, right? The condition is: on condition that you have no claim against me for food, clothing, and marital relations; and then the act is that you should be betrothed. Fine? So that is the formulation of the condition. Since it says later on that Rabbi Meir’s reason, that his condition is void, is because he makes a condition against what is written in the Torah—and if he had not doubled his condition, one could have concluded that according to Rabbi Meir his condition is void simply because a double condition is required, as stated there. Rabbi Meir is the one who says that you must formulate a double condition. And here Rabbi Meir invalidates this condition because it is making a condition against what is written in the Torah. Rabbi Meir holds that even in monetary matters the condition is void. So Rabbi Meir invalidates this condition because it is making a condition against what is written in the Torah. Tosafot says: then it is obvious that we are dealing here with a doubled condition. Because if he hadn’t doubled the condition, Rabbi Meir wouldn’t need to get to the point that it’s making a condition against what is written in the Torah; the condition would be void because it’s not a double condition. According to Rabbi Meir, you need a double condition, right? Therefore it’s obvious that this is a doubled condition. Now Tosafot says: if we’re dealing with a doubled condition, then this whole matter is not clear. “And it is astonishing—if so, why is she betrothed? He explicitly stipulated that if she has against him food, clothing, and marital relations, she is not betrothed.” The man says: I betroth the woman on condition that she has no claim against me for food, clothing, and marital relations. And if she does have a claim against me for food, clothing, and marital relations, then she is not betrothed. That’s what I say. And what do they tell him? She is betrothed to you despite you, and you are also obligated in food, clothing, and marital relations. What do you mean? How can they dictate to me to marry a woman I do not want to betroth? I did not want to betroth her if I have to provide support. You can tell me that I can’t betroth her without being obligated in food, clothing, and marital relations, because that is making a condition against what is written in the Torah. The Torah is not willing to accept that. In legal language, yes, this is called a mandatory rule. Meaning, you can’t contract around it—like, for example, social benefits of workers: even with the worker’s agreement, the employer can’t deprive him of the social benefits. It’s mandatory. Meaning, the legislator doesn’t allow it. And here too, Jewish law does not allow one to make a condition against what is written in the Torah. So you cannot create betrothal without becoming obligated in food, clothing, and marital relations. But then, Tosafot says, what should have happened is not that the condition is void and the act stands. What should have happened is that the act is voided—there is no betrothal. Because you can’t have half a betrothal. But you can’t tell me that there is betrothal and I’m also obligated in food, clothing, and marital relations, because if I am obligated in food, clothing, and marital relations, then on that basis I didn’t want to betroth her at all. Why are you coercing me to betroth a woman I don’t want? I don’t want to betroth her. So how can the rule in the laws of conditions be that the condition is void but the act stands? That is Tosafot’s question. And that’s why he first emphasized that he doubled the condition, because he needs to show that the man expressed very clearly that if there is food, clothing, and marital relations, he doesn’t want her. So how can you force her on him against his will? Before I continue reading, look above at Rabbeinu Tam, which appears in the old Tosafot at the side of the page. It doesn’t appear inside Tosafot. And Rabbeinu Tam says: this is just speaking extravagantly, and this is not a real condition at all, such that the condition should be upheld according to the one who says that when someone makes a condition against what is written in the Torah, his condition is void. And it is like saying: on condition that you ascend to heaven, as in “the workers were hired by sweetness”—that is, Rabbeinu Tam argues that really the man probably didn’t intend to stipulate anything at all. He just meant to toy with her a little, or laugh at her, or I don’t know exactly what. Because clearly he didn’t intend to do something against the Torah, and it’s like “on condition that you ascend to heaven.” “Behold, you are betrothed to me on condition that you ascend to heaven.” Fine—if she didn’t ascend to heaven, then she isn’t betrothed? The Talmud says: no, she is betrothed. Why? Because he didn’t really mean for her to ascend to heaven; he understands that she can’t ascend to heaven. And a person doesn’t betroth for nothing. So what did he mean? Just not to betroth? Then why did he make this whole fuss? He apparently meant to betroth her, and just wanted to laugh at her a little, jerk her around a little, I don’t know exactly what. Okay, so Rabbeinu Tam says: making a condition against what is written in the Torah is really the same thing. Making a condition against what is written in the Torah is just speaking extravagantly. Because he too knows that you can’t do something against the Torah, so why did he say it? What, he didn’t mean to betroth her at all? Just like Tosafot asked. Rabbeinu Tam says: what do you mean he didn’t mean to betroth her? Then why did he do all this? Clearly he did mean to betroth her, and the condition is just empty talk. Therefore the condition is void but the act stands. That is Rabbeinu Tam’s answer. On that the Kovetz Shiurim asks in the next source: “And Rabbeinu Tam answered that this is like speaking extravagantly. But this is difficult, because with regard to ‘on condition that you eat pork,’ in tractate Gittin chapter 4, Abaye and Rava dispute whether this is like speaking extravagantly. And in chapter 4, I think—not chapter 4. Whether it is like speaking extravagantly. And the Talmud asks there: let us derive it from the fact that he is making a condition against what is written in the Torah.” There is a dispute between Abaye and Rava about someone who stipulates with a woman: on condition that you eat pork. Yes? I divorce you on condition that you eat pork. What happens there? Is that like speaking extravagantly, and therefore the condition is void… or is it not like speaking extravagantly? Fine, and then it would be a real condition, and if she doesn’t eat pork then she isn’t divorced. So the Talmud asks: let us derive it from the fact that he is making a condition against what is written in the Torah. Why do we need to get to the question whether this is empty talk or not? This is making a condition against what is written in the Torah—the condition is void and the act stands. What’s the problem? What do we see? That making a condition against what is written in the Torah and speaking extravagantly are two different reasons. Because otherwise, what are you saying? I said it’s like speaking extravagantly—the meaning is that it’s making a condition against what is written in the Torah. Rabbeinu Tam explained that when someone makes a condition against what is written in the Torah, why is the condition void? Because it’s like speaking extravagantly. It’s the same reason, not two reasons. So what does the Talmud there mean when it says: why are you saying it’s because he is speaking extravagantly? There’s a much simpler explanation: it’s making a condition against what is written in the Torah. But Rabbeinu Tam says that making a condition against what is written in the Torah is speaking extravagantly—it’s the same explanation. What do you mean, ‘simpler’? It’s the very same explanation. “Even if we were to say that it is not speaking extravagantly, nevertheless his condition is void because he makes a condition against what is written in the Torah. And it is clear that these are two separate matters, and this requires analysis.” It’s easy to explain, I think; I don’t think it’s difficult. There’s a question in the Talmud there—what does the Talmud answer? The Talmud may answer this very point, that speaking extravagantly is making a condition against what is written in the Torah. Fine, we’d have to see what the Talmud answers there. But beyond that, simply speaking, this is not making a condition against what is written in the Torah at all. To tell her that she should eat pork is not making a condition against what is written in the Torah. Making a condition against what is written in the Torah is when I want to create a legal effect in a way that goes against the Torah. I want to be a Nazirite but also become impure through the dead. There’s no such thing—the Torah said a Nazirite is forbidden to become impure through the dead. I want to betroth a woman without food, clothing, and marital relations. There’s no such thing—the Torah said that if you betroth her, you owe food, clothing, and marital relations. But I want to divorce a woman on condition that she eat pork. How is that making a condition against what is written in the Torah? If you don’t want to, then don’t eat pork and there won’t be a divorce. I’m not making partial divorce, divorce not according to how the Torah said. I’m stipulating that she commit a transgression. So what’s the problem? Am I forbidden to stipulate that? If she doesn’t want to, then let her not commit the transgression. Rather what? It is like speaking extravagantly. This kind of making a condition against what is written in the Torah—the type of “on condition that you eat pork”—that is making a condition—
[Speaker E] against what is written in the Torah in the sense that it’s simply speaking extravagantly. What’s the issue? It’s not really making a condition against what is written in the Torah. It’s just like speaking extravagantly, that’s all. Okay. Fine, but that doesn’t matter. I just want to say that Rabbeinu Tam’s answer—that it’s speaking extravagantly, comparing it to ascending to heaven—what, people don’t commit transgressions?
[Rabbi Michael Abraham] Fine, but the assumption is yes—the assumption of the sages is that there’s no such thing; people don’t commit transgressions. It may be that if in fact a person said this to a woman for whom there is a reasonable chance she would eat pork, then maybe we really wouldn’t say he’s speaking extravagantly. But with an ordinary decent woman, you say such a thing to her—it’s obvious to you she won’t do it, so it’s like ascending to heaven: just empty talk. That would be a practical difference. If it’s making a condition against what is written in the Torah, then it doesn’t matter who the woman is. It’s making a condition against what is written in the Torah; the condition is void and the act stands. But if you say it’s like speaking extravagantly, then you have to examine the situation. If this really is a woman for whom there is a chance that she—
[Speaker C] would do it—then if there’s no
[Rabbi Michael Abraham] problem of making a condition against what is written in the Torah, and the whole issue is only empty talk, then here it may really be that it won’t be considered empty talk, and then it will be a full-fledged condition. So what is the problem of “speaking extravagantly” according to Rabbeinu Tam? That he doesn’t really intend to make the condition. Meaning, he intends to toy with her or laugh at her; he doesn’t intend to stipulate, he doesn’t seriously intend the condition; what he really intends is the act.
[Speaker C] Why doesn’t he intend it? What do you mean, why?
[Rabbi Michael Abraham] Because it’s obvious to him that she won’t commit a transgression, or obvious to him that he can’t do this against the Torah—you can’t act against the Torah.
[Speaker C] Right, not in the pork story—in the story of food, clothing, and marital relations. Same thing.
[Rabbi Michael Abraham] When he says, “I betroth you on condition that you have no claim against me for food, clothing, and marital relations,” well, you know the Torah doesn’t allow that. Betrothal entails food, clothing, and marital relations. So why did you say it? You didn’t mean it seriously. It’s like saying “ascend to heaven.” It’s impossible, exactly like—
[Speaker C] ascending to heaven is impossible.
[Rabbi Michael Abraham] So then why did you say all this?
[Speaker C] If he makes it a condition, then it is possible. No, it’s not possible—it’s making a condition against what is written in the Torah. Maybe he thought that if I make it a condition then it will be possible.
[Rabbi Michael Abraham] No, but it’s making a condition against what is written in the Torah; the Torah just doesn’t allow such a thing. Was he mistaken? As if he didn’t know that the Torah doesn’t allow such a thing? Let him check. The assumption is that we’re not talking about ignoramuses; before he performs a legal act, he checks with Torah scholars and knows what he can and cannot do.
[Speaker C] The Torah speaks about ordinary betrothal, where in ordinary betrothal you owe food, clothing, and marital relations. But the Torah doesn’t speak about someone who makes a condition. Someone who makes a condition—then it’s not making a condition against what is written in the Torah at all.
[Rabbi Michael Abraham] You’re not asking: so what if it’s making a condition against what is written in the Torah? You’re saying: it’s not making a condition against what is written in the Torah at all, because the Torah didn’t forbid that. But the Talmud assumes that it is. The Talmud assumes that even if you stipulate—
[Speaker C] we don’t allow it—it’s mandatory,
[Rabbi Michael Abraham] meaning, why not at all? Why really not? Because the Talmud understands that when the Torah said that you owe food, clothing, and marital relations, the Torah said: I am not willing for there to be betrothal without this. Even if you make stipulations—I’m not willing. It’s not a default rule that if you said nothing, then that’s the betrothal and you owe food, clothing, and marital relations, but if you stipulated, then fine. It’s not like stipulating that an unpaid bailee should have the liabilities of a paid bailee or something like that. Here it’s not like that. The Torah defined the act of betrothal, and the act of betrothal entails food, clothing, and marital relations. If you don’t want that, then it isn’t betrothal. It’s some other invention—do whatever you want—but betrothal it isn’t. That’s how the Talmud understands it, okay? Otherwise it wouldn’t belong to the whole topic of making a condition against what is written in the Torah at all. Now, assuming that is how we understand it, and the person who checked knows that this is the situation, then what did he stipulate? He was just speaking extravagantly.
[Speaker E] But at the very least you have a doubt here, meaning… suppose we say it’s speaking extravagantly—wait, but what? Don’t you have a doubt? After all, there’s a question here whether he intended it or didn’t intend it.
[Rabbi Michael Abraham] No, that’s not it. He’s just exaggerating for effect; he didn’t mean it. Why? Why is there no doubt? That’s his assessment. Maybe he did mean it? My assessment is that he didn’t. If he brings two witnesses who prove to me that he really did mean it, then so be it. Then so be it that it really isn’t just exaggeration. And then indeed the act might be voided. The act would be voided—not that it would remain valid without the condition, with the condition. That can’t be, because he is stipulating against what is written in the Torah. So then we would choose among them—after all, in the end there are three options. If I said, “You are betrothed to me on condition that you have no claim on me for food, clothing, and conjugal rights,” there are three options. One option is: “You are betrothed to me and I am also obligated in food, clothing, and conjugal rights.” A second option is: “You are betrothed to me and I am not obligated in food, clothing, and conjugal rights.” A third option is: “You are not betrothed to me at all.” Right? Now they tell me, listen, the second option is out of the question; it goes against the Torah. The Torah said that betrothal includes food, clothing, and conjugal rights. The whole question is: since that option is impossible, what do I choose instead? So the Talmud says I choose the third: she is betrothed, and I am obligated to her for food, clothing, and conjugal rights. Tosafot asks: why not the first? Because how can you want to obligate me that she be betrothed to me when I didn’t want that? Okay? That’s what Tosafot asks. So Rabbeinu Tam says: because he didn’t mean it seriously. But really, according to Rabbeinu Tam, if it became clear that he did mean it seriously—he said it before two witnesses, and it was clear that he didn’t know that the Torah forbids it, or it doesn’t matter, he meant it seriously—then what would the result be? Not the second, of course, because the second is impossible; it goes against the Torah. The first. Right? There would be no betrothal, because in truth he did not intend to betroth her on that basis, and since otherwise it cannot be done, there is no betrothal. But assuming this is a normal person, then he’s just exaggerating for effect, and then the condition is void and the act stands—that’s the third option. Okay? That is according to Rabbeinu Tam.
But as Kovetz Shiurim objects to him—and never mind, many do not accept Rabbeinu Tam’s view—then the question remains: fine, so why indeed is the condition void while the act remains valid? Let’s go back to Tosafot. Tosafot says: “And the Ri says”—I’m skipping a bit because it’s only a side note not important for our purposes—“that if we had not derived it from the condition of the descendants of Gad and Reuben, I would have thought that no condition can ever void an act, and even if the condition is not ultimately fulfilled, the act still stands. But now that we derive from there that a condition can be effective to void an act, we say that this is specifically when one is not stipulating against what is written in the Torah, similar to the descendants of Gad and Reuben, who did not stipulate against what is written in the Torah.” What does he mean to say? He means this—and this is how the later authorities explain it. The whole mechanism of a condition is a novelty introduced by the Torah. Had we not learned it from the condition of the descendants of Gad and Reuben, there would have been no possibility of making conditions in Torah law. Okay? Since the whole mechanism of a condition is learned from the descendants of Gad and Reuben, then you have to formulate the condition the way it was there with the descendants of Gad and Reuben. What was there? The condition precedes the act, the positive precedes the negative, that one may not stipulate against what is written in the Torah, all those rules. By the way, not everyone agrees that the rule that you may not stipulate against what is written in the Torah is learned from the descendants of Gad and Reuben; Tosafot claims it is. Some say it’s a general principle; it has nothing to do with the descendants of Gad and Reuben. But Tosafot understands that we learn it from the descendants of Gad and Reuben—or the Ri understands that—and therefore you cannot make a condition in a way that was not learned from the descendants of Gad and Reuben.
On the face of it, that explains nothing. So what are you saying? That I can’t make the condition, and therefore what? The act will be voided? I don’t want her to be my wife if I’m obligated in food, clothing, and conjugal rights—so what did you answer? Tosafot didn’t answer anything. What did he answer? Fine, I understand that you can’t make such a condition because we learn from the descendants of Gad and Reuben that only that is how conditions work, and without that it isn’t a condition. Okay. But still, in terms of my intent, I did not mean for her to be my wife if I am obligated in food, clothing, and conjugal rights. So how can you force her on me as my wife?
So what he meant to say is this—and this is how the later authorities explain it. Essentially, there is a problem with a condition because when I effect a legal status, I’m supposed to effect it fully. There is no such thing as a legal status that on this side yes and on that side no. Either you betroth her or you do not betroth her. That’s what can be done. The Torah introduced a novelty: that if you operate according to the mechanism of conditions—let me say more than that. Some later authorities add this in, although I’m not entirely sure I agree, but some later authorities add that this is also a case of speech coming and nullifying an act. You perform an act of betrothal, and you want by means of speech—the speech of the condition—to nullify it. There is no such thing; without the Torah’s novelty, it cannot nullify it. So what do they tell you? Look, if you did it according to the Torah’s rules, then the Torah introduces the novelty that yes, such speech is strong enough and can uproot the act. But of course that is only if you did it according to the Torah’s rules: the condition precedes the act, the positive precedes the negative, not stipulating against what is written in the Torah, and so on.
Then they basically tell the person this: look, you want to make a condition, right? That’s your goal. Now, halakhically, only one channel is open to you. The channel that says: you perform the act in any case, whether there was a condition, whether the condition is fulfilled, whether it is not fulfilled; it’s just that you stipulate a condition, and that condition creates a situation in which the speech uproots the act if the condition is not fulfilled. Not that the act never happened—it is not retroactive clarification; here we are emphasizing what I said earlier. It is not retroactive clarification. Rather, the act will be uprooted. You perform the act in any case, whether you will be obligated in food, clothing, and conjugal rights or whether you will not be obligated, but you make a condition, and the power of the condition—if you made it properly according to the rules—is that such speech can uproot the act. Because the act here is a condition of “from now.” I betroth the woman from now on, on condition that something happen, say, within two weeks. If that something does not happen within two weeks, then the divorce that I did now will be uprooted. How can it be uprooted? Doesn’t speech not come and nullify an act? The Torah introduced a novelty: if you formulate the speech according to the rules of the descendants of Gad and Reuben, that speech will have the power to uproot an act.
So now the person says to himself: basically, I don’t want this woman if I will owe food, clothing, and conjugal rights, right? Only if there won’t be food, clothing, and conjugal rights do I want to marry her. It is clear that this is his intention. But there are halakhic constraints—how do you carry this out in practice? How can you succeed in making it so that she will be your wife if yes, and not your wife if no? There is only one way to do it: you betroth her in any case, whether there is food, clothing, and conjugal rights or not, and you utter speech that creates a mechanism such that if the condition is not fulfilled, the act will be uprooted—the betrothal will be uprooted, okay? Only that way can it be done; it simply cannot be done otherwise. So I did it that way. In effect, I betrothed her in any case and built a condition that would uproot it, and I built that condition incorrectly because I did not do it according to the rules of the descendants of Gad and Reuben. So what am I left with? I’m left with the fact that the woman is betrothed to me in any case, and what was supposed to uproot the betrothal—because I would be obligated in food, clothing, and conjugal rights—does not work, because that is speech that does not receive the force of the descendants of Gad and Reuben; I didn’t formulate it according to the rules of the descendants of Gad and Reuben. So such speech cannot uproot an act.
So even though, if you ask me what my goal really was, I did not want to betroth the woman if I would be obligated in food, clothing, and conjugal rights, but I consciously chose the halakhic mechanism of a condition, and that mechanism works only this way; it cannot work otherwise: namely, that I impose the legal status in any case, and only if the condition is not fulfilled is it uprooted. So if I chose that mechanism, then I imposed the legal status in any case, and I did not build the uprooting mechanism correctly—so what can be done? There is no uprooting mechanism. So I got stuck with this woman; if you want, divorce her. But this woman is my wife even though I owe her food, clothing, and conjugal rights. That is how the Ri explains it.
And then it comes out, according to the Ri, that the mechanism of a condition is really a mechanism that does not retroactively clarify. After all, the question was based on the conception of a condition—and here I come to your question—the conception of a condition as retroactive clarification. Then Tosafot really asks: I don’t understand. If it is retroactive clarification that I never wanted to betroth the woman in the first place, then how do you decide that this woman is betrothed to me and that I owe her food, clothing, and conjugal rights? After all, if I owe her, then I did not want to betroth her. Tosafot says: no. A condition is not retroactive clarification; a condition is causal generation backward in time. It is causal generation backward in time. Meaning, if the condition is not fulfilled, it uproots the act that you performed. It does not reveal that it was never done; it uproots it, and that is from now on retroactively. Meaning, the act was done, and if the condition is not fulfilled, then it will be uprooted. It will be uprooted; it is not that it turns out that it was never done. Okay? So if so, in a place where I did not properly build the uprooting mechanism—I did not do it according to the rules of the descendants of Gad and Reuben—then the legal status takes effect and the uprooting mechanism does not exist, and I am left stuck with the woman.
But for our purposes we have learned that the mechanism of a condition works, at least according to the Ri—and this is probably a dispute between the Ri and Rabbeinu Tam—because Rabbeinu Tam says no. Rabbeinu Tam says that really the solution should have been that there is no betrothal, were it not for the fact that he was only exaggerating for effect. But the Ri says, what do you mean? Not because of exaggeration for effect. He gets stuck with her even when he owes her food, clothing, and conjugal rights. The dispute between them is about how to understand the mechanism of a condition. Rabbeinu Tam says that the mechanism of a condition is retroactive clarification, and the Ri says that the mechanism of a condition is from now on, retroactively. Okay.
Now this has—we won’t have time to get to this. Maybe I’ll do it in the next lecture. Or maybe we’ll keep the pages, put them here somewhere. Next lecture we’ll continue with this, and then we’ll also come to the problem.
[Speaker E] Can we put it up top, this thing here?
[Rabbi Michael Abraham] We can put it here too, no? We just have to remember that it’s here. We’ll try to remember. That concludes Rabbi Machpud’s lecture.
[Speaker B] That concludes Rabbi Michael Abraham’s lecture, Thursday, the twenty-eighth of Tevet, 5777, January twenty-sixth, two thousand seventeen.