Essentially, by bending a few rules of physics and other sciences with as little handwavium and unobtainium used, could there be a way to travel several parsec and/or lightyears in a (relatively) short time?
Edit:
Time travel is fine, but there is a limit to how long you live. You might zip from Point A to Point B, to the observer, but you’ll still feel the journey’s length, no matter how quick or long it appears.