evolution Ears And Mouths Are Optimized For Speech In Medium-Message Fit, we showed how a given medium (like brains or text) determines the kinds of messages that can live on it. But the medium is not fixed. Memes can change their
cultural evolution Biology-Culture Fit Biology-culture fit is the extent to which cultural adaptations fit onto our biological anchors. For example, we can't make biological ants believe in a Sun God. Ants' simple biology isn't a good anchor
evolution Fitness Landscapes Should Have These Three Dimensions A fitness landscape is a helpful tool for thinking about biological and memetic evolution—which information will be successful in a given environment. Unfortunately, most fitness landscapes neglect the environmental dimension. This stops