Do we all remember Feynman's "Single Electron Conjecture" that states, basically, that a single electron moving back and forth in time could "fill in the gaps" on every electron ring around every atom in the universe? Well, assuming Superstring Theory is true and every particle is really a vibrating superstring (and, as such, all particles are generically the same), can't we "conjecture" that the entire universe is really one vibrating superstring moving back and forth in time?
(I know this is probably a bit of a stretch, but, hopefully, Superstrings may turn out to be more like rubberbands than previously imagined.)
