There was a SSC post a while back about how every new kind of psychotherapy works great at first, and then reverts to the mean over time. Gotta be the same ide

There was a SSC post a while back about how every new kind of psychotherapy works great at first, and then reverts to the mean over time. Gotta be the same idea - some guy thinking "I'm going to be so successful once I prove my new concept works!"