 7. Genetic, genealogical understanding. Since nearly everything is the product of historical development or disintegration, studying its historical genesis and dissolution is key to understanding it. Genetic fallacies are avoidable by including development and maintenance as part of the narrative, since development can be transformative. Today many writers are exploring the biological and socio-cultural evolutionary origins of human rationality, going far deeper, historically, than to recent historical developments such as the so-called Scientific Revolution.