Cosmology: our galaxy is an oddball (Introduction)

by David Turell , Wednesday, October 25, 2017, 15:30 (2585 days ago) @ dhw

DAVID: I have no idea why the universe is so big. All I know is our galaxy is special.

dhw: Agreed, but according to the article, “it is likely that each [galaxy] will be, in some way, peculiar”. So each galaxy is likely to be special. And if this is true, and if we are faced with the possibility of an infinite number of different galaxies, the odds are that eventually at least one of those different galaxies would produce the special conditions necessary for life.

I maintain that we do not know that there are infinite galaxies in this universe. 'Infinite' is the basis of your argument, the same argument as in multiverses.