F
Fomalhaut
Guest
Again, as I said, the theory itself doesn’t say anything about the creation of the universe. It’s hard to believe but it is true. It just says that it was very dense and very hot at some point. It doesn’t say that time didn’t exist before, or that all matter was ejected from a single point. Imagine a cone. Cut off the very tip. Now what you have is an almost perfect cone, except that the tip isn’t a single point, it’s more of a flat surface. If you look at the general shape of the cone, you can think “Yeah, it was probably a perfect cone before”, but YOU CANNOT BE SURE. Maybe it was a hourglass shape with a non-punctual junction and you just got that one half. Because you miss the tip, there’s no way to know how the shape you have actually began.Formalhaut
Science will never be able to answer that question because the Big Bang produced time itself. There was no “before” before the Big Bang!![]()
However, science may one day be able to probe beyond that very hot and dense step. People are already imagining ways to do that: in case of a Big Bounce (there was a universe before ours that contracted and bounced to expand again as our universe) some scientists wants to detect gravitationnal waves occuring at the end of the “previous universe” when the last quasars were colliding. If we detect this, that would be an evidence for another universe before ours. It is not eternally out of reach for science. It was for a long time because light cannot cross this barrier and we rely on light only to study the universe. Gravitationnal waves are a fascinating way to overcome this, and we probably on the merge to master their detection.