|
Richard,
I'm not at all sure why this has never been pointed out in the literature. But the key to your whole cosmology is the fact that in closed string 26-d bsosnic theory there is two timelike dimensions means necessarily, I am thinking, that there must be two 4-d spacetimes.
I know that Tony Smith realizes that two 4-d spacetimes are necessary, but he attributes the 2nd spacetime to internal or microscopic symmetry; and in addition he uses a 4-d compactification four times for his cosmology.
Yours makes so much more sense, to use the 6-d compactification three times and get three worlds and two spacetimes
Wanda |