I find it very difficult to buy the idea that a person is characteristically stupid. People does things like described by the definition all the time. It's called mistakes. Some people are ignorant sure. But my guess is that even the most ignorant person is not an idiot most of the time.
> When confronted for the first time with the Third Basic Law, rational people instinctively react with feelings of skepticism and incredulity.
> Most people do not act consistently. [...] We can calculate for each person his weighted average position in the plane of figure 1 quite independently from his degree of inconsistency.
> The only important exception to the rule is represented by the stupid people who normally show a strong proclivity toward perfect consistency in all fields of human endeavours