M theory

[bondinthesand]

SOooo i finally understand (with in reason) M theory!!! but correct me if i am wrong, they say the universe (or multiverse) started because parallel universe collided and gave mass and such and formed our universe. But what i dont no is how can we tell the actually existence of parallel universes? or is it all theory?

[Demystifier]

That's not what M-theory says.

[Cryptonic]

That sounds like Steinhardt and Turok's "ekpyrotic (http://www.amazon.com/Endless-Universe-Beyond-Big-Bang/dp/0385509642)" theory.

[BigFairy]

sort of obvious