From an Article in the New York Times, here is one of the coolest theories I've ever heard that isn't already an episode for Star Trek. This quote sums it up:
"A pair of otherwise distinguished physicists have suggested that the hypothesized Higgs boson, which physicists hope to produce with the (Large Hadron) collider, might be so abhorrent to nature that its creation would ripple backward through time and stop the collider before it could make one, like a time traveler who goes back in time...
Published on October 16, 2009 01:00