Interesting.

Now, accepting for a moment that the "viable" portion of the Universe was smaller than an atom and for some reason best known to itself decided to "explode", it would explode/expand in all directions?

Sooooo, if it exploded/expanded in all directions, it must have done so from a single point, ie, the centre? Where's the centre? Where are we in relation to "the centre"?

Also...... if it was the "viable" = possible portion of the Universe that was smaller than an atom, what's the "impossible" part of the Universe?

Those clever chaps never seem to get round to questions like the above?

OK, accepting for another moment that what they say so far is right, why don't they say that they don't know for sure, they're theorising but have no idea where the"centre" is, where we are in relation to it and they've no idea how far the Universe extends beyond the "part" they've been able to "see" so far?