Q&A: Space
Originally published:
This is an English translation (via GPT-5.4). Read the original Hebrew version.
Space
Question
When the astrophysical theory says that space is expanding, does science actually have a concept of what it is talking about, or is this just an abstract theory whose existence is only in mathematical formulas? Into what is space expanding, and what exists outside it before space expands into it?
Answer
I don’t understand what it means to say there is a “concept.” Do you mean being able to visualize it? No. So what?
Discussion on Answer
You can create a mathematical description of anything. So what? A physical thesis is described by mathematical formulas, but it does not get its validity from the fact that it has a mathematical description. It is based on empirical evidence.
Meaning, the space that is expanding (which, unlike a physical body, can expand faster than the speed of light) is nothing more than a mathematical formula for a reality that does not exist. Couldn’t we also create a mathematical reality for a fairy world, for example?