4 ms·

I think you should read this article "Misconceptions about the Big Bang": http://pages.erau.edu/~reynodb2/LineweaverDavis_BigBang_SciAm_March05p36.pdf http://p

• EMM_386 6y ago
  > The big bang was an "explosion" of space itself. There was not previously empty space. I am very familiar with all of this. My question was merely around the opposing concepts of "expansion" and "infinite". Not infinite size AT the big bang. Infinite size of the current universe.
  • simonh 6y ago
    Technically I think yes, it may have a finite extent. If inflation theory is correct though, it will continue to inflate at extreme rates (if unevenly) for infinite time and so depending on how you think about infinity will have infinite extent in spacetime. On the other hand if Roger Penrose is correct about Conformal Cyclic Cosmology, and cosmic inflation is false, then ultimately the universe will reach a state where scale ceases to matter and it will become mathematically indistinguishable from a hot dense big bang again. https://en.wikipedia.org/wiki/Conformal_cyclic_cosmology https://en.wikipedia.org/wiki/Conformal_cyclic_cosmology