If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
I really doubt the possibility to convey this in mere words. I had previous experience with abusive people, I studied psychology, I heard stories from other people... and yet all this left me completely unprepared, and I was confused and helpless like a small child. My only luck was the ability to run away.
If I tried to estimate a sociopathy scale from 0 to 10, in my life I have personally met one person who scores 10, two people somewhere around 2, and most nasty people were somewhere between 0 and 1, usually closer to 0. If I wouldn't have met than one specific person, I would believe today that the scale only goes from 0 to 2; and if someone tried to describe me how the 10 looks like, I would say "yeah, yeah, I know exactly what you mean" while having a model of 2 in my mind. (And who knows; maybe the real scale goes up to 20, or 100. I have no idea.)
Imagine a person who does gaslighting as easily as you do breathing; probably after decades of everyday practice. A person able to look into your eyes and say "2 + 2 = 5" so convincingly they will make you doubt your previous experience and believe you just misunderstood or misremembered something. Then you go away, and after a few days you realize it doesn't make sense. Then you meet them again, and a minute later you feel so ashamed for having suspected them of being wrong, when in fact it was obviously you who were wrong.
If you try to confront them in front of another person and say: "You said yesterday that 2 + 2 = 5", they will either look the other person in the eyes and say "but really, 2 + 2 = 5" and make them believe so, or will look at you and say: "You must be wrong, I have never said that 2 + 2 = 5, you are probably imagining things"; whichever is more convenient for them at the moment. Either way, you will look like a total idiot in front of the third party. A few experiences like this, and it will become obvious to you that after speaking with them, no one would ever believe you contradicting them. (When things get serious, these people seem ready to sue you for libel and deny everything in the most believable way. And they have a lot of money to spend on lawyers.)
This person can play the same game with dozens of people at the same time and not get tired, because for them it's as easy as breathing, there are no emotional blocks to overcome (okay, I cannot prove this last part, but it seems so). They can ruin lives of some of them without hesitation, just because it gives them some small benefit as a side effect. If you only meet them casually, your impression will probably be "this is an awesome person". If you get closer to them, you will start noticing the pattern, and it will scare you like hell.
And unless you have met such person, it is probably difficult to believe that what I wrote is true without exaggeration. Which is yet another reason why you would rather believe them than their victim, if the victim would try to get your help. The true description of what really happened just seems fucking unlikely. On the other hand their story would be exactly what you want to hear.
No, that is completely unlike. That sounds like some super-nerd.
Your first impression from the person I am trying to describe would be "this is the best person ever". You would have no doubt that anyone who said anything negative about such person must be a horrible liar, probably insane. (But you probably wouldn't hear many negative things, because their victims would easily predict your reaction, and just give up.)
Not a person, but I've had similar experiences dealing with Cthulhu and certain political factions.