Halfway through this I just stopped reading and drew my own little Klein bottle-like sketch of a cyclical universe. t = 0 is close to t = ∞, but the whole thing's like at least a 5D hypersomething, so it might not fare better than string theory :(. Looking forward to swinging by my ex-nextdoor neighbor cosmology prof's office and saying "Hey, what if...". There's absolutely no way that I'm right, but it might help him with something. You never know.