Invariance is a French magazine edited by Jacques Camatte, published since 1968.
It emerged from the Italian left-communist tradition associated with Amadeo Bordiga and it originally bore the subtitle "Invariance of the theory of the proletariat", indicating Bordiga's notion of the unchanging nature of communist theory. However it soon broke with many of the tenets of Bordigism and Marxism per se, arguing that in the aftermath of May '68 there was no longer any potential for the working class to escape the domination of capital through revolution. Instead it began to take the line that humanity itself had become "domesticated" by the rule of capital and the only solution was to "leave this world", a view which came to influence Fredy Perlman, John Zerzan and others in their development of Anarcho-primitivism. It was this radical shift in orientation which caused many of its critics to observe: "nothing varies more than Invariance ".
Invariance is now in its fifth series and appears sporadically. Every cover features the same image of a tree (held to represent that "all is life"), and on the back the phrase: "Time is the invention of men incapable of love".