I watched the PBS special (my main knowledge on string theory). i thought it was for all string theory but i guess this makes it only counter brane theory.
i was looking at how gravity works in string theory (i heard somwhere gravity can go between the univerces). if that is right than there would be a major problem (in my oppion). for my example i am going to use a big sun. the sun will have a gravitational affect in every univerce pulling objects...