This might seem like a subject of Science Fiction, but it encourages a lot of thought in matters both physical and philosophical. A recent paper in Scientific American discussed whether time travel is indeed feasible and why current physical and philosophical objections don’t preclude the possibility of time travel. I’ll attempt to describe how they deal with the objections here and explore the plausibility of time travel. First, relativity allows for time travel into the future: as I mentioned in a previous missive, journey at a very high acceleration and you’ll return to earth years into the future, aging only slightly. This, of course, ignores the fact that we can’t travel at such high speeds as of now; this issue will be addressed later. There is a […] Read More