Max Tegmark, Brian Green and others have written about the possibility of multiverses as a continuity from this Universe and the general field of creation. Any comments about that? If it is possible in theory to create a wormhole to another space-time and 'birth' a pre-designed universe one-day, or if such was already done and universes created by intelligent design came to dominate a finite number of universes through a process of natural selection perhaps better known as synthetic selection (because of the intelligence factor), how would those synthetically designed universe fit into the overall field on universes comprising the natural endowment of universes? Would synthetic universes displaces pre-exisiting universes potentially? On a derivative question... Is the Higgs Field underlying the Universe, or are the extra dimensions believede to form a contiguous substratum for it, the cause for the limit on light speed for mass that? Does mass accellerating to light speed completely detach from the extra dimensions and then become infinitely heavy by associating with the dimensions of this universes soley while temporarily severing ties with the extra dimensions, or vice versa?