I don't think that's really the point being made here. Opportunity cost is a useful thought exercise for all kinds of decisions, not just "Should I follow my pa

I don't think that's really the point being made here. Opportunity cost is a useful thought exercise for all kinds of decisions, not just "Should I follow my passion to become an underwater basket weaver?" type questions. I've found it very helpful to consider what opportunities I'm giving up whenever I'm deciding on a course of action, even if it's simple like: "If I go out drinking with friends tonight, I'm giving up rising early tomorrow and feeling good."