It is easy to travel faster than the speed of light. Speed is always measured relative to a reference frame, and here we cheat by choosing as a reference a distant star or quasar, so distant that, because of the expansion of the universe, it is receding faster than the speed of light. It is beyond the edge of the observable universe, as light from it would never reach us.
Then, superluminal travel is accomplished simply by doing nothing. Let the expansion of the universe do all the work. The maximum speed limit of c based on Einstein's theory of special relativity only applies to static, flat spacetime.
No comments :
Post a Comment