Agreed - "economic rationality" is an extremely narrow concept. As an example, it's "rational" to buy yourself a car or an ice cream cone, because you get utili

Agreed - "economic rationality" is an extremely narrow concept. As an example, it's "rational" to buy yourself a car or an ice cream cone, because you get utility or enjoyment out of it. It's "irrational" to give money to others, because... you don't get enjoyment out of it? Wait, what if you do? A giant problem with the definition, methinks.