Could the big bang have started from an infinitely large cosmic egg?

An inflationary universe 10^120 times as big as our observable universe means 10^40 observable universes for every single one of the 10^80 atoms estimated to exist in our observable universe. And everything that exists started all at once in a single instant, from an infinitesimally small point? It's logic like this that seems so utterly difficult for a finite mind (like my mind) to grasp. Wouldn't the better hypothesis (I'm not sure whose), be an infinitely large universe from a primordial 'and' infinitely large cosmic egg? Somehow, since infinities are totally beyond imagination (my imagination), the concept of a finite universe (not infinite), originating from a point, seems harder to swallow than an egg; excuse the pun.