I would really like to talk to a scientologist about how they empirically diagnosed the existence of engrams.  If they are really aiming at a state of clear, what is wrong with logic & critical thinking?  I am skeptical that their answers can pass through a thorough critical thinking filter.  I would like to diagnose their errors in never fully employing critical thinking.  I am even willing to do this with my own scientific machine (empty box) on the table.