[idlewords]

I don't much like the author either, but this is his area of expertise and I think his perspective is valuable.

In my reading, his main points are that (1) ADHD diagnosis is very wooly and (2) amphetamines have a similar effect on everyone, whether or not they believe themselves to suffer from ADHD. The second point in particular is one that is always disputed on internet forums, where it's held as gospel that stimulants have some kind of paradoxical calming effect on the neurodivergent, and that this is one way to distinguish 'real' ADHD sufferers from people who just want better focus.

So the upshot is, there's a powerful focus-enhancing drug that is available to anyone provided they believe in the existence of a condition called ADHD and know how to tell the right stories about it to gatekeepers.