If you believe that homeopathic medicine can treat ailments better than medicine that has been scientifically proven to work, you are acting irrational. In this short video James Randi explains homeopathy. This is a portion of the lecture Randi gave at Princeton in 2001.

James Randi has an international reputation as a magician and escape artist, but today he is best known as the world’s most tireless investigator and demystifier of paranormal and pseudoscientific claims.