Gary O'Brien

'How many animals should there be? Population ethics, species, and totalism'

11th April 2023, 2-3.30pm
In-person in room G07 (Elmfield Building) and online via Google Meet


A central question in population ethics concerns how we ought to assess the value of populations which differ in the number and identities of the people who compose them. Totalism entails the Repugnant Conclusion. In this talk I examine some of the normative implications of endorsing the repugnant conclusion when non-human animals are taken into consideration.

(If you have any queries please send them to