It took some time to realise that Prof Steinhardt is talking about the multiverse. For the observable universe, most of the assumptions (especially the importance and effects of quantum physics) would hardly apply; at least they cannot be observed directly – with the exception that we can actually see quantum oscillations in the CMB signature (without them, that plasma ball would be uniform and very boring, since no structures could have formed).

Great reductio ad absurdum attack.

But maybe that’s how reality is – maybe reality allows everything that can happen to actually happen.

Yes, inflationary theory seems to be explaining the emergence of the multiverse rather than the expansion of our particular Universe.

Yes, inflationary theory seems to be explaining the emergence of the multiverse rather than the expansion of our particular Universe.

Eternal Inflation allows for every conceivable combination.

hmm, all is possible, and all possibility happens all the time, so where is the bubble that can move between bubbles and invades all other bubbles. Oops, the universe just died.