> I now try to avoid using the English idiom "I just don't understand how..." to express indignation. If I genuinely don't understand how, then my model is being surprised by the facts, and I should discard it and find a better model.
I just don't understand what kind of person expects their idioms and mental models to have a literal 1:1 match. If I wanted to say exactly what I'm thinking, I wouldn't be reaching for idioms.