[specialist]

For reasons, I had to learn about actual insanity. 5% is spot on (filed under believe but cannot prove). The kicker is when someone is high functioning, as in can pass for sane, in most contexts. But then unpredictably acts totally out of bounds, sometimes in very scary ways.

Start thinking about insanity and you'll get pulled down the sinkhole of "what is sane?", "am I insane?", "would I know if I wasn't?"

IMHO, the takeaway point isn't "insane" or "sane". It's more like "Do I have a theory of mind for the person(s) I'm interacing with?" and "How do I have compassion for people who are suffering in ways that I don't understand?"

YMMV.