In response, David Sloan Wilson, a longtime proponent of group selection (in a yet more generalized form known as multilevel selection), has argued that much of the debate comes down to different but ultimately equivalent accounting methods (different ways of partitioning the entire population) and is thus less contentious than the ongoing disagreements have made it appear (see David Sloan Wilson, Does Altruism Exist? Culture, Genes and the Welfare of Others [New Haven: Yale University Press, 2015], 31–46).
