%0 Journal Article %T Beyond the ¡®other¡¯ as constitutive outside: The politics of immunity in Roberto Esposito and Niklas Luhmann %A Hannah Richter %J European Journal of Political Theory %@ 1741-2730 %D 2019 %R 10.1177/1474885116658391 %X This article re-conceptualises the ¡®constitutive outside¡¯ through Roberto Esposito¡¯s theory of immunity to detach it from Laclau and Mouffe¡¯s political antagonism. It identifies Esposito¡¯s thought as an innovative epistemological perspective to dissolve post-ontological political theories of community from the intertwinement with a foundational self/other dialectic. Esposito shows how a community can sustain its relations through introversive immunisation against a primarily undefined outside. But it is argued that his theory of immunity slips back to a vitalist depth ontology which ultimately de-politicises the construction of the communal outside. This article draws on Niklas Luhmann¡¯s immunity theory to resituate immunisation in the political production of social connectivity. Following Luhmann, politics relies on immunisation through contradictions to reproduce its functional role as a decision-making institution, but is at the same time constantly exposed to potential rupture through the political openness immunity introduces. Through Esposito and Luhmann, this article identifies the relationship between a social inside and its outside as open-ended and secondary to an introversive process of socio-political self-differentiation. It can involve, but does epistemologically necessitate, the construction of an external other %K Immunity %K constitutive outside %K self and other %K community %K autopoiesis %K Roberto Esposito %K Niklas Luhmann %K biopolitics %U https://journals.sagepub.com/doi/full/10.1177/1474885116658391