we can study development (of [[policy|behaviour]], [[language acquisition]], etc) across three time scales:
| [[gene\|genetic]] evolution | [[culture\|cultural]] evolution | growth within lifetime |
| --------------------------- | -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
| "phylogenetic" | "memetic" | "ontogenetic" |
| "nature" ([[innate]]) | "nature / nurture" | "nurture" ([[empiricism]]) |
| [[gene]] | [[culture\|meme]] | [[psychology and epistemology\|mind]] |
| [[natural selection]] | [[natural selection]] / [[history]] | [[developmental psychology]] / [[human memory]] / [[human inductive bias\|human learning]] |
| [[species]] | [[intersectionality\|social group]] / [[sequential decision environment\|environment]] | individual |
| hundred-thousands of years | hundreds of years | less than a hundred years |
[[credit assignment]] across these is often difficult!
see [[dual inheritance]], [[hominid]], [[Homo sapiens]]