The confusion of stupidity for irrationality is common but equally a misunderstanding. While being stupid and irrational may lead to the same outcome, poor decision-making, we should realise that the two are distinctly different. Most humans are not stupids; a lot of us are irrational in something or the other.
Stupidity is the error of judgement caused by inherent limitations of intelligence. Irrationality is due to risk illiteracy or the lack of knowledge of probability. One may be mitigated; the other is doubtful.
