In this paper, I discuss some points of Bruschi's book, in order to underline the political interest of the original philosophical proposal contained in his interpretation of Althusser. I point out the problematic character of the continuist reading of Althusser's work developed by Bruschi, around three fundamental perspectives: the application of the materialist method to read the evolution of a thought "under conjuncture", the effects of the subtraction of theory from the epistemological field and the legitimacy of the recourse to the metaphor of the island of communism in the theory of the transition.