Evolution and Memes: The human brain as a selective imitation device — Susan Blackmore
The same argument explains why our brains seem especially adapted to soaking up some kinds of memes rather than others. For example, most people find mathematics and reading difficult, but adopting religious rituals, retelling stories and singing songs easy. This argument parallels an important argument in evolutionary psychology. It has become increasingly clear that the human brain is not a general purpose learning device but is adapted to learn some things more readily than others, based on genetic advantage in past environments (Pinker 1997, Tooby & Cosmides 1992). The equivalent for memes is that the brain is not a general purpose imitation machine, but one honed by memetic and genetic evolution to be good at copying some kinds of memes and bad at others. Songs, stories and rituals have long taken part in gene-meme coevolution while maths and reading are relative newcomers, using machinery that was not designed for them.