Is Capitalism Inevitable? Is Revolution Possible? Deleuze and Guattari between Capitalism and Calculus

In Anti-Oedipus, Gilles Deleuze and Felix Guattari maintain that nature is a process in which there is neither nature nor human being, except as a single reality produced in the processes of production, distribution and consumption, where distributions are immediately consumed and the consumptions immediately reproduced. In its historical realization, this is the process of capitalism, which must be an effect of such processes, processes of nature and human nature. This gives rise to this question: given the rules governing nature, including human nature, how much contingency is there and how much determinism? And ultimately, is capitalism inevitable?