All things have a constant speed in spacetime: the speed of light. If you stand completely still, you travel through time at &quot;the speed of light&quot;. If you start moving faster in space, you&#x27;ll lose a similar amount of speed in time. Go fast enough, and your life will pass in slow-motion. Go at the speed of light and your time stops. Go faster than the speed of light, and your time will start going backwards.<p>Since you can&#x27;t get out of a black hole normally, the only way to get out is by reversing time. I.e., going faster than light might be an option to get out of a black hole.<p>Of course, doing so is nonsense, but the maths work out.