system
Given the following post, respond as if you're commenting on Reddit:
human
[Superman] (A) Why did Superman think that flying around the world would work and (B) How DID it work?

To reverse time?! If you've seen the movie, you know what I'm talking about.
gpt
Superman is going backwards in time by flying faster than the speed of light. Going in a loop around the Earth was simply efficient, as that's where he wanted to end up when he was far enough into the past. The Earth itself wasn't spinning backwards; rather, Superman's perception of the Earth's rotation made it look like it was going backwards, due to the negative direction he was moving through time. How Superman was able to see the planet at all at relativistic speeds, well... When you have superpowers that let you break the speed of light under your own power, you stop caring so much about what Einstein may have said.