What will happen is that big pharma will throw some pills on the market and do heavy marketing claiming that nightowlism is a severe disease that needs to be treated with “changing brain chemistry”, and night owls will be labeled as mentally ill or of weak character by society forever for their evolutionary adaptation. It already happens to an extend, night owls who can’t use their peak productivity hours around 2am because they have to adhere to some artificial schedule (often made by people who don’t have to do a lot of brainy things) are often on smart drugs during the day.