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Infinite regression

שו”תCategory: generalInfinite regression
asked 9 months ago

I saw that you said that infinite regression is impossible because infinity does not exist, but I didn’t understand what the difference was between saying that this is how the universe is in infinite regression and imagining an infinite God who created the universe and saying that this is how God has always been.


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מיכי Staff answered 9 months ago
There is no problem in principle with saying that the universe is ancient, except that it is not true (it is 14 billion years old). But there is a problem with it being its own cause (because matter is not its own cause). And there is also a problem with an infinite chain of explanatory links (because it is a concrete and not potential infinity). All of this is explained in my book, which is found first in the second conversation.

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אבי replied 9 months ago

And an infinite God is not a problem?

מיכי Staff replied 9 months ago

No. And as I wrote, an infinite world is not a problem in principle either.

Amir Hoze replied 9 months ago

Just to be precise, the Rabbi means that an infinite world and the pre-existence of God are within the scope of potential infinity.
The Rabbi's words: I explained here and also in the notebook. There is a difference between a chain of reasons that one person grasps at another. Such a chain is not an explanation if it stops somewhere, and therefore it is a concrete infinity (as if one has to reach the bottom). To say that there is a chain of explanations that I do not know the end of is to say that you have no explanation. On the other hand, to say that God exists at any time that you can reach is potential infinity, since I am not talking about infinity but about a magnitude that is as large as you want (there is nothing greater than it). To refine this further, mathematical knowledge is required. If you have it, you can certainly understand things. If not, it is difficult for me to explain it here.

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