Most likely, you've never been abducted by aliens, and you probably don't know anybody who's had a brush with bigfoot. But undoubtedly, you or somebody close to you has had the apparently paranormal experience of "seeing" the future or distant events. Most of us have dreamt something that eventually came true, had a correct hunch about an event miles away, or predicted an out-of-the-blue phone call from an old friend. The experience is incredibly strange -- positively spooky -- but it happens all the time.

So what's going on here? Depends on who you ask. A sizable chunk of the world's population attributes these strange events to extrasensory perception (ESP), a special sense beyond vision, hearing, smell, touch and taste. Unlike ordinary senses, ESP has virtually unlimited range, and it's experienced mainly as thoughts rather than bodily sensations.

The other view holds that there's nothing supernatural about these events at all. These things do happen, the skeptics say, but they're perfectly in keeping with conventional science.

In this article, we'll take a look at both sides of the argument to find out what might be behind the ESP phenomenon. We'll also find out how false psychics can fake ESP, and we'll see how this sort of trickery factors into the ongoing parapsychology debate.