User blog comment:Mr. Youtube/Columbia and Rapture/@comment-158.130.223.195-20130426190558/@comment-75.36.140.209-20131208125512

"as the existence of one city is a constant in the parallel universes as mentioned by Elizabeth."

Or Elizabeth is wrong. Quantum weirdness doesnt make Elizabeth a genius and the effects it has on others was probably visited on her in spades.

In other words Elizabeth is likely insane and all of this is some dream she is having in an insane asylum.