Theta and gamma are the most honest summary of the options trade-off. Mechanism: Positive gamma usually costs carry. Positive theta usually sells convexity. Once you see that trade-off clearly, many option strategies stop looking mysterious. Why it matters: It is one of the cleanest ways to understand what you are getting paid for and what you are exposed to. Market translation: A trader collecting small daily theta should never forget what kind of gamma profile is financing that income. Failure mode: The mistake is loving the carry without respecting the convexity sold to earn it. Review question: Before sizing up, identify whether the edge comes from cash flow, volatility, timing or balance-sheet structure. The point is not to memorize the label. The point is to know what variable is actually doing the work.