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You dont know what happen post big bang either...its all speculation! Please stop acting as though we know what was happening (in your mind) 64 billion years ago...we dont know for sure what was going on right here on earth 10,000 years ago. Pleeese!
I don't know if anyone else has mentioned this, but YES, we can actually observed what was happening millions and millions of years ago by observing distant stars, galaxies, and nebulae. (just a quick note, by current theories the universe is about 13-14 billion years old). This is because light takes time to travel long distances. If a star is 1 billion light years away, then the light that reaches the earth is a reflection of what was happening 1 billion years ago. It is comparable to time travel in a way, although we aren't able to actually interact with the past in a way that will affect the present. Within these observations is the cosmic microwave background. These are the electromagnetic emmissions left over from the Big Bang, and we can observe them NOW. So, yes, we can experience the Big Bang in the present, and form theories that explain these observations in a way that incorporates all of the data. The result is the current Big Bang Theory. As new information comes in, the theory may have to be adjusted, but for the most part it is pretty well supported.
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