OK, calm down, folks: much depends on one's weapon mathematical model of choice when dealing with the initial singularity (mis)called the Big Bang. Some recent models say there was a *before*, and others say nay; but once you extrapolate as far as the singularity, all bets is off.

There's also a common misconception that the Universe is expanding; this caught out some astrophysicists to begin with, as red shift looks uncommonly like Doppler shift. The way I had the effect explained to me is that space itself is expanding, and dragging the Universe with it.