How might the brane theory be tested? When would such equipment be available?
The theologically interesting thing of all this, of course, is that it seems to form a plausible many-worlds scenario -- since presumably there would be a relatively infinite variety (perhaps within certain bounds) in the kinds of physical universes that could be produced by colliding branes. Thus, if verified experimentally, it could produce evidence that the universe could have originated without requiring it to be created by an intelligent creator(s). So it joins the Everett version of quantum mechanics in the limited range of plausible many-worlds theories.