The point he is making is one that I have tried to develop in this book, namely that the flywheel of history is incremental change through trial and error, with innovation driven by recombination, and that this pertains in far more kinds of things than merely those that have genes. This is also the main way that change comes about in morality, the economy, culture, language, technology, cities, firms, education, history, law, government, religion, money and society. For
