A relatively high share of intelligence and behaviour is depended on genetics which we assume is constant. Education aims to develop the environmental share whi

A relatively high share of intelligence and behaviour is depended on genetics which we assume is constant. Education aims to develop the environmental share which has a ceiling but it's all we can do. Electronic screens have a profound correlation, positive until the 90s and later until today negative. Other independent factors might be financial deterioration and even microplastics. Quantitative estimates vary. I like the comparison with smoking, which started as a status symbol and ended being banned.