Quote Originally Posted by bu villain
I've never heard anyone say they can "prove" the Big Bang. It is usually refered to as the best theory we have but never scientific fact. You can easily point to lots of evidence such as redshift, proportion of elements, etc but they are not definitive. Since I do not feel it can be proven 100% at this time, i would rather discuss the items you feel are inconsistent with the theory.
It never will be proven, nothing in the past without a record can be. They may prove the theories to be possible physically, but that doesn't answer anything.