Proving the absence of something lies in the nether regions of science and mathematics. Consider the problem of proving the absence of Bigfoot -- it can't be do

Proving the absence of something lies in the nether regions of science and mathematics. Consider the problem of proving the absence of Bigfoot -- it can't be done. This is a well-understood logical problem with a storied past: http://en.wikipedia.org/wiki/Russell's_teapot http://en.wikipedia.org/wiki/Russell's_teapot