Maybe it's due to my west coast liberal upbringing, but, the idea of parallel universes doesn't strike me as being too far out there.
“American critics are like American universities. They both have dull and half-dead faculties.”
“But it is impossible to divide a cube into two cubes, or a fourth power into fourth powers, or generally any power beyond the square into like powers; of this I have found a remarkable demonstration. This margin is too narrow to contain it.”