"The Elegant Universe" questions Does quantum mechanics really believe in parallel universe? Do all the physicist have to accept this as the mainstream theory? Are the other dimensions in the String Theory spatial? Is it possible for the universe to have more undiscovered fundamental forces? What causes strings to vibrate in the M theory? And how do we know about their shape? Also, how can something be circular like rubber band if it is only 1 dimensional? Even though, string theory is very consistent due to mathematics....would it still be considered a philosophy since it makes to attempts to connect to reality?