The entire concept that people will continue to do things voluntarily that can have no positive effect and that will erode health, intelligence, talent, relationships with self and others, confidence, appearance, ability, judgment, productivity, reliability, skills of every sort, civility --- that's a bit of a crackpot situation. Good common sense and normal survival instincts overturned by the crackpot voice of addiction. Identifying that voice so as to silence it, to rob it of all power, does not seem so crackpot to me.