> in a pre-civilization pre-agrarian world, but ADHD would make pretty much no difference.

I have ADHD and I also have hyperfocus, I think hyperfocus is an advantage in a pre-industrialized world.

As a child I was fascinated with blowguns. After a summer of shooting unripe grapes out of plastic pipe, I could shoot anybody in the forehead from 20 meters away, easily. I shot the blowgun thousands of times a day, it was relentless.

The same when I went fishing, a whole day could vanish and it would feel like a blink of an eye.

I taught myself how to ride a bike and I woke up that night to ride the bike, even though it had a flat tire.

I like to go mushroom hunting, but when I do, I usually like to go alone, I walk for extraordinary distances, rough terrain, I don't get bored, I can literally keep at it for the whole day that people think I'm crazy.

It's a bit like a stimulant induced obsession, but my inner voice recedes far back in my skull, it's an incredible flow state-like feeling.

I'm sure this kind of obsession builds skills and it has to have some benefits in pre-industrial societies.