It’s not “just” the speed of light though, light is limited by the speed of information, also known as the speed of causality. If you were to somehow exceed that, then your future light cone becomes very messed up, and effect starts to be possible before cause.
It’s not “just” the speed of light though, light is limited by the speed of information, also known as the speed of causality. If you were to somehow exceed that, then your future light cone becomes very messed up, and effect starts to be possible before cause.
In other words, literal time travel