Answer:
Trade-offs: Gaining some enjoyment is worth giving up some safety.
Step-by-step explanation:
Opportunity cost also known as the alternative forgone, can be defined as the value, profit or benefits given up by an individual or organization in order to choose or acquire something deemed significant at the time.
Simply stated, it is the cost of not enjoying the benefits, profits or value associated with the alternative forgone or best alternative choice available.
The Big Idea Stefan is using is trade-offs: gaining some enjoyment is worth giving up some safety.