I don’t think this is the most pleasant way to be introduced to rationality, but irrational behavior as a teaching device has worked surprisingly often for me.
Assume your subject has encountered common sense ever in their life. Leverage their hindsight bias and confirmation bias to give them the idea that being sensible is the assumed good idea. “People with common sense like us …” You will even be telling the truth on all levels.
Assume your subject has encountered common sense ever in their life. Leverage their hindsight bias and confirmation bias to give them the idea that being sensible is the assumed good idea. “People with common sense like us …” You will even be telling the truth on all levels.