Suddenism

In regard to our Dog-hole of an Earth, my own Conviction is that the great Law of Nature is "Graduality" & not "Suddenism", & that the Cataclysms which have disturbed our Crust are but the Exceptions which prove the Rule itself—

Source: wiktionary

Instead of gradualism, a lot of tradition and a little change, we find we have suddenism, no tradition and all change.

Source: wiktionary

Unqualified suddenism is as impossible to maintain as unqualified gradualism.

Source: wiktionary