How big is the universe?
Will the universe continue expanding forever, dying a cold death? Will the universe stop expanding, and contract, causing everything to collide together?
Will the universe continue expanding forever, dying a cold death? Will the universe stop expanding, and contract, causing everything to collide together?
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.