I'm pretty sure people who habitually lie about basically everything (Sayre's law applies, for some weird reason) are simply believing their own lies and cannot

I'm pretty sure people who habitually lie about basically everything (Sayre's law applies, for some weird reason) are simply believing their own lies and cannot consistently tell reality from their made-up world. Any conflict between reality and their world is met with a defensive response (straight up acting like something was not brought up, shallow dismissals, changing topics, aggression). I didn't know there's a special word for this - mythomaniac - I just figured these guys are somewhere on the psychopath/sociopath scale. Edit: Trump put a slightly different twist on it, he lied as a show of power/dominance by lying about something which is immediately and obviously false, then observing that no one speaks up (i.e. submitting to his power).