The reason I wanted to start with the David Miscavige is not a Scientologist concept is that when evaluating what he knows and thinks I see it as he is helped and hampered by it all the time . His " reality " is not limited as most Scientologists are by Hubbard's thousands ( really millions ) of lies as re-framing reality into a deluded trance ( good ) but he knows he has to constantly pretend to his underlings and especially in public and at events to be a true believer !
He is trapped in Hubbard's con and for every major move he makes it has to at least seem remotely Hubbardian or plausible that " an evil typesetter with psych wholetrack implants dramatized an evil purpose so..." See the absurd shit he has to pass of as " tech" and "investigations" .
I think those constraints and the constant lying but having to fit his lies into Hubbard's mold must tie up almost all his evil insane mind . He is running a con within another's con pretending there is no con ( which has been exposed by hundreds to millions ) . It does not help that Hubbard's con has millions of words of published doctrine to pretend to follow but that they are already insane and contradictory and Hubbard did not follow them . To many Friends of LRH types the contradictions and crimes are all DM's doing ! Talk about guilt by association ! The cruel joke is they are both guilty but the deluded can hang onto hope if they protect Hubbard's demigod status by any means necessary ! ( Sorry indies, it broke my heart to learn the ugly truth too )
So , I think the main thing Davey knows is what it feels like to be alone , love no one , always blame others , have no conscience and feel trapped and like you have no way out . He can never be honest and has to always present a fake face to everyone - no exceptions . Look what all his "status" has got him ? The joke is no one can even love him as he hides who he really is and knows they only love a lie if he fools them and if he does not...well , do you love him ?
Ultimately he is to be pitied , exposed as a criminal cult leader and stopped by the law certainly but pitied . I hope that helps show what he "knows" .