How can a speck of a universe be physically identical to the great expanse we view in the heavens above?
Brian GreeneOne of the wonders of science is that it is completely universal. It crosses national boundaries with total ease.
Brian GreeneThe revelation we've come to is that we can trust our memories of a past with lower, not higher, entropy only if the big bang - the process, event, or happening that brought the universe into existence - started off the universe in an extraordinarily special, highly ordered state of low entropy.
Brian GreeneThere may be many Big Bangs that happened at various and far-flung locations, each creating its own swelling, spatial expanse, each creating a universe - our universe being the result of only one of those Big Bangs.
Brian Greene