However, the environmental constraints change and the amount of scientific knowledge also changes(and hopefully improves) over time. Therefore the heuristics t

However, the environmental constraints change and the amount of scientific knowledge also changes(and hopefully improves) over time. Therefore the heuristics turned into rule book will inevitably become harmful eventually. Also keep in mind that the rulebooks did not produce anything close to any ideal personal outcome. They always produced the ideal societal outcome that would preserve the existing structure of society. If said structure meant you were inherently harmed, your personal ideal was subordinated to that.