How to map the multiverse

New Scientist ^ | 5/4/09 | Anil Ananthaswamy

[LibWhacker]

BRIAN GREENE spent a good part of the last decade extolling the virtues of string theory. He dreamed that one day it would provide physicists with a theory of everything that would describe our universe - ours and ours alone. His bestselling book The Elegant Universe eloquently captured the quest for this ultimate theory.

"But the fly in the ointment was that string theory allowed for, in principle, many universes," says Greene, who is a theoretical physicist at Columbia University in New York. In other words, string theory seems equally capable of describing universes very different from ours. Greene hoped that something in the theory would eventually rule out most of the possibilities and single out one of these universes as the real one: ours.

[InterceptPoint]

the other is the known fact that gravity propagates instantaneously, violating Einstein's claim that information cannot be passed around faster than C.

Hmmmm. References please.

[wendy1946]

Try this...