Is there a cure for stupidity?
I don’t think so. There is a cure for ignorance. You can learn and conquer and overcome your ignorance, but stupidity is another matter entirely. If someone is stupid, they usually don’t realize it and there is not much you can do to convince them that they are lacking in the smarts area, so they are likely to remain stupid about whatever they are stupid about for all their lives. So you can cure ignorance but you can’t cure stupidity.