Markets are defined as ways to allocate scarce resources, and capitalism is in fact not just a scarcity allocation system but also a scarcity engineering system, which can only accumulate capital by constantly reproducing and expanding conditions of scarcity. Where there is no tension between supply and demand, there can be no market and no capital accumulation. What peer producers are doing, for now mostly producing intangible entities such as knowledge, software and design, is to create an abundance of easily reproduced information and actionable knowledge. This cannot be directly translated into market value, because it is not at all scarce - its over-abundant. And this activity, moreover, is done by knowledge workers, whose ranks are steadily expanding. This over-supply threatens to make knowledge workers jobs precarious. Hence, an increased exodus of productive capacities, in the form of direct use value production, outside the existing system of monetisation, which only operates at its margins. In the past, whenever such an exodus occurred - of slaves in the decaying Roman Empire, or of serfs in the waning Middle Ages - that is precisely the time when conditions were set for major societal and economic changes.