Volatility tolerance
User-selected appetite for portfolio volatility, on a 6-tier scale from Minimal (sleep at night, STRC + SATA only) to Ludicrous (heavy 2× leveraged sleeves). Higher tolerance unlocks more aggressive sleeves; the engine guarantees expected return is non-decreasing as tolerance rises (monotonicity invariant).
How to read it
Tolerance is a promise about behavior, not a personality quiz: it asks how deep a drawdown you can watch without selling. The six tiers run from Minimal, which holds only the income instruments, to Ludicrous, which carries leveraged sleeves with brutal interim swings. The honest read is one notch below where your ego points, because the tolerance that matters is the one you have at minus sixty percent.
On Galaxy Mind
Tolerance is the first dial on /fit and the engine's hardest constraint: STRK never appears in Minimal portfolios, leverage only unlocks at the top tiers, and expected return is guaranteed non-decreasing as tolerance rises, a monotonicity invariant the test suite enforces on every engine change.
Context
Bitcoin has drawn down more than seventy-five percent from its high in every completed cycle. Every tier of the engine is calibrated against that reality: the question is never whether a deep drawdown comes, it is which instruments you can hold through it without converting a temporary loss into a permanent one.