Daniel Dennett and others argue, genetic evolution is not enough to explain the skills, power and versatility of the human mind. Over the past 10,000 years, human behaviour and our ability to manipulate the planet have changed too quickly for biological evolution to have been the driving force. In Dennett’s view, our brains turned into fully fledged modern minds thanks to cultural memes: ‘ways of behaving’ — pronouncing a word this way, dancing like so — that can be copied, remembered and passed on.