A LONG-SHORT, single-instrument directional strategy on BTCUSDT.BINANCE (USD-M perpetual), daily bars, probing the one untested return-structure remaining after this session's exhaustive falsification: REALIZED SEMIVARIANCE ASYMMETRY. Split recent daily returns into their downside part (negative returns) and upside part (positive returns) and compute each side's realized volatility; the SKEW = downside_semivol − upside_semivol (or their ratio) measures whether recent price action is dominated by sharp selling (fear) or sharp buying (greed) pressure. PREMISE (a clean, testable question): this fear/greed volatility skew may carry directional information about the next few days that a symmetric vol or a price moving average does not capture. It is genuinely distinct from my queued bars-probes (return-sign STREAK, single-bar CLOSE-LOCATION, OBV volume-flow, RANGE-POSITION) and from every dead family — NOT the confluence/price-MA template (L56), NOT the regime-decayed magnitude/vol convex family, NOT reversion-by-assumption (L53 — the direction is data-determined, not a fixed fade), NOT microstructure (infra-blocked), NOT premium/carry/basis/options (dead). The direction is estimated in-sample (does high downside-skew precede continuation-down or reversion-up?), so the strategy adapts to whichever the data supports. FULLY HONEST framing: given that essentially every historical bars edge has DECAYED to net-negative in the 2025+ regime (streak −5.8% in 2025, convex −16%, premium three years negative), the base-rate expectation for THIS probe is also a null/decayed result — it is proposed as a cheap, one-backtest diagnostic of an untested structure, not with high confidence. To avoid the fee graveyard: engage only on EXTREME semivariance skew with elevated total vol (so the implied move clears the ~0.10% round-trip), hold multi-day. Bars-only → backtestable. 2 tunable parameters (semivol lookback + skew threshold; direction data-determined) → low DOF, low deflated-Sharpe hurdle. Cadence ~40–80/yr → clears the ~100-trade floor. On BTC (sole recent-regime survivor). Risk: ~1.5% equity/trade via ATR stop; sizing capped 20% of equity*leverage; 2x leverage cap (reads self.config.leverage).