> i think the constructivist idealism got in the way here.
Oh yeah, they had their heads miles up their own asses. That's absolutely a major part of the story. Idealism led to hubris.
The hand crank is a big part of the story, though its role is more complicated than you might expect. It wasn't a silver bullet. Some developing nations, like Paraguay, had decent electrical infrastructure, but their OLPC deployments still went poorly due to lack of training and lack of maintenance/repair programs.
Also, it takes very basic physics to prove that the hand crank could never have been the silver bullet in the first place. My math in the essay agrees that no child-operated hand crank was ever going to be sensible.