I have explained "Dubnesia" before, which is that amnesia that JWs seem to get about the actual content of their so called spiritual nourishment. Not to criticize, as I always get that after hearing H. Ross Perot talk.
Now I have audio of dubnesia as we hear two JWs explain to a householder about how wonderful the talk they heard was. For some reason they can not recall any specific fact they learned in the talk, only that it felt good to hear it.
These are not actors, and this is actually what the religion does to people's minds.