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Level 15
· ◆◆◆◆ · ~12 min
Volatility & the Smile
The one input you can't look up — and the shape it makes.
"If Black–Scholes were true, the smile would be flat. It isn't."
A short lesson, then a quiz. ❤️×3 — a wrong answer costs a heart; finish with at least one left and the level is yours. Lose all three and you'll have to try again. Replay any time — XP and cleared levels are never lost.