Quote Originally Posted by LegioXXXUlpiaVictrix
The problem as I see it is that the big bang theory assumes that time didn't exist before big bang, without proving it. Big bang theory only has supporting arguments for the creation of exergy, and I don't think it has anything supporting creation of matter and energy, let alone time and dimensions.
Time is a property of this universe. There is nothing to say it is an essential property of any other universe. For this universe, it was created at the Big Bang. Therefore there is no concept of before in relation to the creation of this universe.

Matter and energy are inter-dependent. Time as a dimension is a property of this universe, as are length and breadth. The Big Bang deals neatly with them all, insofar as the creation of the universe goes. It currently has nothing to say about before, because there is no before.

If you apply your own assumptions as detailed, of course the Big Bang doesn't seem to fit the observations. But your assumptions need to be changed if you want to understand - which is what cosmologists are finding right now. The maths is very hard to follow, but interesting when explained, even if counter-intuitive.

I'm a biologist by training, so physics makes my brain hurt.