It is really hard to figure out if you are "slow" or just so stubbornly stuck in whatever strange world you live in...
He doesn't get out much, what with all the little boys he keeps in the basement
I've met people like him before. Whatever they know is fact, refuse to listen to anyone else, or apparently read or learn about anything new. I'd say he has more in common with a rock than a human, but that would insult rocks everywhere as they at least have a use!