 Mike Dacey (2016) distinguishes further notions of simplicity, such as a preference for those mechanisms that demand less computational memory, time, or energy, those that require less input data, or those that posit fewer changes in the phylogenetic tree. We previewed an argument along these lines in our discussion of anthropomorphism and anthropodenial—which is simpler, positing a simpler cognitive capacity and more changes over evolutionary time, or positing a more sophisticated cognitive capacity and fewer changes over evolutionary time?