This article tacks back towards the idealist side of the argument, in a spirited defence of critical humanism against the radical symmetry of ANT. Vandenberghe argues that the critique of reification and the ethics of emancipation require us to go beyond the `flat ontology' of ANT and its intermediate level of sociotechnical networks towards a more stratified view of social reality, which is able to account for the determining effect of broader generative but invisible structures of domination. Reasserting the categorical (...) distinction between the ontological regions inhabited by humans and nonhumans, he develops a critical opposition between the gift economy, which emphasizes qualitative relations of reciprocity between humans and which tends towards the personalization of things, and the commodity economy, which objectifies things as property, promotes the reification of persons, and turns them into strategically operating `humants'. This model is critically applied to ANT by suggesting that its `fetishist' attribution of social power to nonhumans effectively results from a failure to account for the emergent properties of the broader relational and cultural systems in which they are embedded, and which overdetermine the blackboxed object worlds which ANT has described. (shrink)