/sci/ - Science & Math

My best hypothesis for this is that he is flying faster than light speed, this creates a massive gravity well that may pull earth into a black hole.
At this point the Earth is in another dimension with enough ENERGY (from superman moving FRL somehow) that energy and matter can be gathered and returned to their previous states.
The "world spinning backward" is just a myth spun up by the humans who witnessed the event to explain what happened because it violated all their known preconceptions.