It's Official: We Were WRONG About the Big Bang

2:50 "... this idea of things expanding from a single point is wrong."  I'm not criticizing because I made the same mistake for a very long time. Part of the problem is that many people who speak about the BBT either don't know what they're talking about or are being very sloppy. 

The big bang theory draws no such conclusion about t=0. In other words, the BBT is not about the origin of the universe. It's strictly about the evolution of the universe starting at 10^(-32) after the initial "bang." It says nothing about what banged or why it banged. The notion of the universe starting at the so-called primeval atom is based on applying the equations of general relativity to t=0. What can be said is that the entirety of the *observable universe* was once within the size of an atom.  

Having said that, there is no logical contradiction in the idea of an infinite universe that had a beginning. If at any one infinitesimal interval of time, the expansion rate is infinite then you have an infinite universe.