TL; DR: some people are just animals that believe in nothing.
Idea: what most divides us from other animals isn't thinking, consciousness, or the ability to create tools to adapt. It's belief. Not in a higher power, but in existential drive. I think it shows a level of intelligence that sets us apart as a species.
Hunch: some people are too stupid for this, and are closer to other animals than they are to us. They don't believe in anything. Decisions are made by instinct and self preservation above all.
I'd imagine that, if you were to analyze their genes, they might have traits from "another branch of the family tree."
For decades I'd been battling PTSD. After at least 5 therapists and many medications, I'd say it's under control.
I learned very late in life that I have ADHD, so I'm trying to balance that out. What stinks is that it affected my childhood and I had no idea, and there's nothing I can do about it now.
That's what it looks like. I'm gonna try it out today.