British physicist, Stephen Hawking has written a piece about the different possible ways to travel in time. Possible, of course, is used in the purely theoretical sense. Most of what he says is well understood by any physics 101 student, but it’s well put and somehow avoids that actual complexities of the problem. Hawking seems have made a recent career of being a children’s physics explainer. I’m not sure I like it, but it is useful if you are a fan of crappy science fiction movies.
The basic point of his article is ‘go fast.’