(January 8, 2014 at 7:01 pm)Cthulhu Dreaming Wrote: (I may be completely off my rocker here, but I've got the ball, and Imma run with it.)
I believe you are conflating two different meanings of theory here.
Brian Green's multiverse theory is a mathematical model, and belongs purely to world of theoretical physics. As such, it is not strictly scientific, as you alluded. However, as it does belong to the world of theoretical physics and not (yet) to the world of science, it would be inappropriate to apply the scientific definition of theory to it.
Thank you for the clarification. But seriously, it might improve communication if they find another word instead of "theory" to express their models (how about just "string model").