Which will gain the battle?
Expound please.Originally posted by Brad_Ad23
but to all you M-theory people...it treats spacetime as an independent background. It doesn't have the necessary dependent background changes that LQG has.
Actually, String Theory (and of course, M-Theory) is dependant on the idea that the curvature of space is the cause of all interactions. Indeed, the purpose of any hyperspacial theory (including M-Theory) is to explain all of the "forces" as curvatures of spacetime.Originally posted by Brad_Ad23
M theory still treats spacetime as a fixed background in which interactions play out. But GR tells us otherwise. We know that interactions are shaped in part by the curvature of spacetime, and that in turn also is shaped by the interactions. LQG treats spacetime as something that is developed from the very basics and in which various interactions shape and are altered by it. Lee Somolin (sp) book The Three Roads to Quantum Gravity does a much better job at explaining it than I could right now.