Science Forums 2

[Moontanman]

Some aspects of brane theory suggests the universe is a much bigger than we know and is made of a multidimensional "bulk" space. The 3d space we live in is a 3d brane floating in this "bulk" space. It has at least one other 3d counter part that it is attracted to by gravity which is the only force that can leave the 3d brane. These to branes are like sheets on a clothes line. They attract and collide in an endless time scale many orders of magnitude longer the age of the universe now. The collision results in an apparent big bang that occurs everywhere not just a point. the energy of the collision causes all matter in each brane to turn into energy much like what we think the big bang was like. the resulting energy drives the branes apart and each 3d brane cools back into hydrogen much like the big bang we think of now. with each collision the 3d branes expand to infinity from the view point of a 3d observer but they stay finite from the view point of an observer of the "bulk" space.