What is the principle of uniformitarianism?

Uniformitarianism, also known as the Doctrine of Uniformity, refers to the invariance in the principles underpinning science, such as the constancy of causality, or causation, throughout time, but it has also been used to describe invariance of physical laws through time and space. read more

Uniformitarianism, in geology, the doctrine suggesting that Earth’s geologic processes acted in the same manner and with essentially the same intensity in the past as they do in the present and that such uniformity is sufficient to account for all geologic change. read more

His widely read Principles of Geology presented an empirically formidable argument supporting Hutton's thesis "that all past changes on the globe had been brought about by the slow agency of existing causes" (I: 63), a theory of geological change known as uniformitarianism. read more