Quote:We made it pretty far though!


Way to shut down any discussion in the matter.


That answer is very easy. We don't know for sure. We have a couple of working theories backed by physics, mathematics, and some observable data. Obviously they can't currently be proven since it happens billions of years ago and cannot be observed.


At the risk of crossing the line of rules here, if that is the kind of evidence one needs to accept a scientific theory, then I wonder how they accept other things in their lives.