3 ms·

Thanks for pointing this out. I've always thought about the initial singularity as a point in both time and space. Is it still correct to say all the matter tha

Thanks for pointing this out. I've always thought about the initial singularity as a point in both time and space. Is it still correct to say all the matter that makes up our observable universe started out at a single point in space? Since the singularity was infinitely dense, this at least seems possible.

thechao 8y ago
I'm about to do something terrible, but it helped me immensely to understand the Big Bang. Let's pretend we have a magic box that tells us how space expands over time: V(t) So, t starts at '0', which we're gonna call 't0', and goes until 'now'. So V could be small, it could be big. We don't know, and it kinda doesn't matter. The reason is that the way the Big Bang works is like this: (t - t0) * V(t) So, when t == t0 (the beginning of time), it doesn't matter what shape space (V) has, the size of the universe (spacetime) is '0'.