A

David

Darling

principle of uniformity

The principle of uniformity is the assertion that the laws of nature discovered on Earth apply throughout the rest of the Universe. From this it is a reasonable, though not inevitable, conclusion that the same physical, chemical, and biological processes that gave rise to terrestrial life could also produce life elsewhere. The principle of uniformity is a fundamental tenet of science. Together with two other basic beliefs (see mediocrity, principle of; plenitude, principle of) it used by most SETI proponents to argue that life and intelligence are not uncommon throughout space.