George: In Woodin's lecture he surprisingly tries to get round this by introducing the Multiverse concept! But ultimately he concludes this doesn't work either. > > I must admit I skipped a lot of the end section of his lecture, but at the end he admits that everything is back at square one. > > This is why I don't place any credence in theories of the universe that involve infinite regression in time.-I'm sure I couldn't follow it. Do you think there has been a series of singular universes like this one, and if there were do they vary, or are they all the same?