WHAT'S INSIDE: SCIENCE VS. MYTH

Are vampires real? What is an out-of-body experience? Are crop circles proof that aliens exist? HowStuffWorks explores what is real and what is urban legend with this collection of Science Versus Myth articles.
  • Afterlife
  • Everyday Myths
  • Extrasensory Perceptions
  • Strange Creatures
  • Unexplained Phenomena
  • What If
FEATURED: SCIENCE VS. MYTH
FPO

Let's assume that it's possible to create a complete loop in time travel -- that time travelers could travel into the past and then return to the future (or vice versa). What could we do with our time machine, and how would time travel affect our lives?

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