It’s not that they’re stupid; it’s just that they don’t know anything
consiliumeducation.com
consiliumeducation.com
Alright, I'll take issue with this. My step-sister is mentally handicapped. She is not able to know a lot of things. Does this make her stupid? By the author's definition, yes, but I would aggressively argue "no". She is as smart as she is capable of being, impressively so at times. She knows as absolutely much as she is realistically able to know with the cards she has been dealt.
Instead, I would suggest that "stupid" be reserved for those who have the ability or opportunity to know something, but choose not to.
That's "intentional ignorance"