Do Brains Contain Many Conscious Subsystems? If So, Should We Act Differently?

This is the fifth post in the Moral Weight Project Sequence, which provides an overview of the research Rethink Priorities conducted between May 2021 and October 2022 on making resource allocation decisions across species. This post assesses the hypothesis that brains have many conscious subsystems, which could affect how we ought to make tradeoffs between members of different species.