 For Sartre, the practico-inert is the negation of humanity. Any reaffirmation of humanity, in which genuine freedom resides, must take the form of the negation of this negation (negation is productive here, as it also was in Being and Nothingness). For Sartre, then, there are two fundamental kinds of social reality: a positive one in which an active group constitutes the common field; and a negative one in which individuals are effectively separated from each other (even though they appear united) in a practico-inert field. In the practico-inert field, relations are typified by what Sartre calls seriality, like a number, or a worker in a factory who is allocated to a place within a given system that is indifferent to the individual. Sartre’s prime example of this is of waiting for a bus, or street-car, on the way to work. If the people involved do not know each other reasonably well there is likely to be a kind of anonymity to such experiences in which individuals are substitutable for each other in relation to this imminent bus, and their relations are organised around functional need. If the bus is late, or if there are too many people on it, however, those who are waiting go from being indifferent and anonymous (something akin to what Heidegger calls das Man in Being and Time) to becoming competitors and rivals. In a related spirit Sartre also discusses the serial unity of the TV watching public, of the popular music charts, bourgeois property, and petty racism and stereotyping as well. These collective objects keep serial individuals apart from one another under the pretext of unifying them. Sartre thus appears to accept a version of the Marxian theses concerning commodity fetishism. This competitive or antagonistic dimension of the practico-inert is amplified in situations of material scarcity. This kind of seriality is argued to be the basic type of sociality, thus transforming the focus on dyadic consciousnesses of Being and Nothingness. In the Critique, otherness becomes produced not simply through the look that Sartre had previously described as the original meaning of being-for-others, but through the sedimentation of social processes and through practico-inert mediation. Society produces in us serial behaviour, serial feelings, serial thoughts, and “passive activity” (Sartre 1960a [1976: 266]), where events and history are conceived as external occurrences that befall us, and we feel compelled by the force of circumstance, or “monstrous forces” as Sartre puts it. It is the practico-inert, modified by material and economic scarcity, which turns us into conflictual competitors and alienates us from each other and ourselves. Only an end to both material scarcity and the alienating mediation of the practico-inert will allow for the actualisation of socialism.