Question: will time travel ever be possible

Leigh Kesler answered on 5 Mar 2019:

This is a difficult question to answer, because it deals with areas of physics that are still not fully understood. We know that when objects move very close to the speed of light (c = 3 x 10^8 m/s) or when objects experience high gravitational fields (like near a black hole), time moves much more slowly for them. In a sense, a person in either of these situations would time travel to the future – they would get to the future faster than the rest of us. However, these theories also imply that time travel to the past would be impossible. We don’t really know how time travel would work in any case, and I don’t like to say that anything is impossible – not too long ago people thought that airplanes were impossible. So I would say future time travel is something we almost understand, past time travel is a complete mystery, and anything is possible.