Abstract
In this article, I contrast two theories of history: a Marxist theory (that of G. A. Cohen) and an anarchist theory. Both theories, in their respective attempts at explaining epochal transitions, seem to require some plausible construal of Marx's claim that revolutions occur when a society's economic relations ‘fetter’ the development of its productive forces. From an examination of a number of different construals of ‘fettering’—‘development fettering’, ‘use fettering’, ‘ACRU fettering’, ‘net fettering’, and even ‘forfeitur’—I conclude that none of them supports the Marxist theory of revolution, while each is consistent with the anarchist theory of epochal transformation.