It is because of the massive psychological engineering that takes place behind the scenes. Authors or book publishing companies do not hire teams of psychologis

It is because of the massive psychological engineering that takes place behind the scenes. Authors or book publishing companies do not hire teams of psychologists to engineer and A/B test their products to try to get you locked into a dopamine reward cycle. The same kind of approaches that casinos do to hook you in and keep you addicted are now standard in these mobile apps.