Im writing a story in which it is possible to travel very close to the speed of light. Lets say for the moment that this is some kind of wormhole drive. My conceit is that, due to a quirk of physics, its possible to traverse space almost instantly while time passes for everyone else, so a ship might arrive at its destination in a few seconds, but a time comparable to the time it would take to travel there in a direct line at the speed of light would have passed for the observer. Im thinking the equivalence is not exact as theres anomalous topologies when attempting to go anywhere in a straight line, etc. Its a wormhole drive because i want to avoid all the speeding up, slowing down and deflector shields. Does that sound marginally plausible? If yes, what can you infer from such a technology? Maybe side effects or interesting phenomena?