The ability to perceive events occurring over a timelike, as opposed to a spacelike, interval. Manifests as a perception or comprehension of past or future events in the mind of the individual employing it. See psionics.
Clairvoyance can only be acheived when the individual has gained a full understanding of the principles of psionics.
My friend who sits diagonally in front of me. Clairvoyance is not her real name, but she, for some reason, decided that it would be her name from now on, though that decision was made while she was on a lot of sugar, so I don't know if it was the best decision. It was, however, hilarious at the time. She talks in 3rd person when she turns from her real name to Clairvoyance.
Clairvoyance: Clairvoyance wants CANDAY!!!!!!