Which is why I said "theoretically" and also mentioned relativity. Time was when people thought that we'd never fly and that any speed above 30mph would cause your body to explode. Until we can find, and harness, a particle that does transcend light speed we are definitely limited to the speed of light as an absolute. Could you imagine one of the early settlers (convicts) of Aust, suddenly being dumped here in the 21st century? EVERYthing would seem like magic, and impossible.