In response to the forum article ‘What Next for Actor-Network Theory?’, this piece takes up the suggestion that a fruitful way forward for actor-network theory (ANT) would be to engage with ideas ‘originating from elsewhere’, such as from other theoretical traditions. Examining this, I suggest that the version of ANT brought into such dialogue matters, and that – contrary to the suggestion of the forum article – Latour's late ‘modes of existence’ project is not the most conducive for this purpose. I then assess the prospects for a productive cross-fertilisation between a less meta-ontological articulation of ANT and other theoretical repertoires, identifying an obstacle to this in the tendency of ANT to use other traditions of social thought largely as a foil against which to define itself, which mitigates against proper engagement with the strengths of those traditions. Taking a lead from the examples discussed in the forum article, I flesh this out by highlighting some of the shortcomings of ANT, relative to political ecology for instance, as a way of understanding socio-ecological relations and conflicts, in part because of its habitual disdain for certain sorts of ‘grand abstractions’, in particular, ‘capitalism’. I argue conversely that such abstractions not only speak to the lived realities of historically embedded structural violence and dispossession at the heart of socio-ecological struggles, but are crucial for situating people's lives in the context of wider relations and processes, something one might well deem a key purpose of sociology.