well of course that people can be made to fully believe in things that are demonstrably false. That's like no big deal today as we see it everywhere, but back in 1987 when "Dianetics" was on TV all the time including a whole list of completely false claims, I needed some help to understand exactly what that was about and how indeed maybe I didn't need to throw my life away at the local Scientology center as that book would have you believe. As a young absolute literalist, I needed some help to learn that people can be made to think basically anything, so if someone is claiming to you, "I can levitate - no really, I can float around the room" - they are likely incorrect (yet still saying those words that are easily disproven).