What: Big Bang
Ripples in Space and Mind
Confirming inflation would mean that the universe we see, extending 14 billion light-years in space with its hundreds of billions of galaxies, is only an infinitesimal patch in a larger cosmos whose extent, architecture and fate are unknowable. Moreover, beyond our own universe there might be an endless number of other universes bubbling into frothy eternity, like a pot of pasta water boiling over.
Carl Sagan talks about the possibility of an electron being a whole universe in the Cosmos episode The Edge of Forefever (around 55 minutes and 10 seconds in):