Multiplying universes: How many is the multiverse?

 作者:繁南     |      日期:2019-03-08 04:19:03
By Amanda Gefter HOW many universes are there? Cosmologists Andrei Linde and Vitaly Vanchurin at Stanford University in California calculate that the number dwarfs the 10500 universes postulated in string theory, and raise the provocative notion that the answer may depend on the human brain. The idea that there is more than one universe, each with its own laws of physics, arises out of several different theories, including string theory and cosmic inflation. This concept of a “multiverse” could explain a puzzling mystery – why dark energy, the furtive force that is accelerating the expansion of space,