Earlier quoted context omitted.
> Manual labor is something literally anyone can do. No, it's not; people can just as easily lack the physical capacity for manual labor as they can lack the intellectual capacity for knowledge work. There are plenty of people who can do knowledge work but would be unable to do manual work.
'Manual' does not mean lifting 300 pound stuff up stairs, which, yes, few people are strong enough to do, but rather jobs that are simple and hands-on. Almost anyone can pick up a mop and move it around. The minimum IQ to do that is around 78 I think. But few people can grasp the intricacies of coding, or math, or anything that involves a lot of abstractions and knowledge. It's not a matter of elitism but just biolog…
I've worked with people—quite talented knowledge workers—who could not physically lift and move a mop. Or their own body more than trivially without mechanical assistance, for that matter. Yes, you can be intellectually handicapped and capable of physical work, but intellectual handicaps aren't the only kind.