charliespider t1_j25sisz wrote
Reply to comment by Opus-the-Penguin in If the Big Bang was the end of a previous universe, then could a strong enough telescope see into the previous universe? by [deleted]
Nope.
Here's a thought experiment that might help explain the issue:
Imagine if you can, an infinite universe that is ALSO infinitely dense. So all of the energy in this universe is crushed down into an infinitely dense point, but this point is also infinite in length in every direction.
Now imagine that ALL of that energy suddenly expands outwards in all directions across all of infinity, becoming significantly less dense in an instant. As the energy decreases in density and temperature it begins to condense into matter. But again, this happens everywhere at the same time across this entire infinite universe. We just happen to be somewhere within all of that.
We don't know if that's what has actually happened but it's one possibility and hopefully gives you an idea of how we can't identify a center or starting point for the big bang. As far as we can tell, the big bang happened everywhere.
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