Plausibility of Time Travel

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

Traveling Through Time

What is time? Is time travel possible? For centuries, these questions have intrigued mystics, philosophers, and scientists. Much of ancient Greek philosophy was concerned with understanding the concept of eternity, and the subject of time is central to all the world’s religions and cultures. Can the flow of time be stopped? Certainly some mystics thought so. Angelus Silesius, a sixth-century philosopher and poet, thought the flow of time could be suspended by mental powers: Time is of your own making; its clock ticks in your head. The moment you stop thought time too stops dead. The line between science and mysticism sometimes grows thin. Today physicists would agree that time is one of the strangest properties of our universe. In fact, there is a […] Read More