A LONG-SHORT, single-instrument strategy on BTCUSDT.BINANCE (USD-M perp, 4h bars) driven by a POSITIONING signal no deployed strategy uses: the divergence between Binance's top-trader long/short account ratio (larger, better-informed accounts) and the global long/short account ratio (the broad retail crowd). Both series are already collected by the factory's data infrastructure (BinanceFuturesDataCollector → top/global L/S ratios in data/supplementary), which de-risks the data-availability wall that abandoned the liquidation-feed siblings. Thesis (documented 'smart money vs dumb money' effect): when the retail crowd becomes extremely one-sided (global L/S ratio at a positioning extreme) WHILE top traders lean the other way, the crowd is offside and a reversal/normalization follows — so trade WITH the top traders and AGAINST the crowd. Mechanism per 4h bar: compute divergence = z-score of (top_trader_LS_ratio − global_LS_ratio) over a rolling lookback; when top traders are net-long relative to a crowd that is extremely short, go LONG; when top traders are net-short relative to a crowd that is extremely long, go SHORT — each entry additionally confirmed by a price trigger (close reclaiming/breaking a short EMA in the signal direction) so we do not catch a falling knife. This is deliberately a DIFFERENT family from everything dying this session: NOT trend-following (the 209-death single-regime graveyard — it is contrarian-to-crowd and regime-distributed), NOT funding carry (the saturated fee-dying basket family), NOT an N-leg basket (single-instrument, 2 fills/round-trip, sidesteps L12's 2N×10bps fee wall that just killed the ETH/BTC pairs trade at −0.63%/trade), NOT options (no trade-count wall), and NOT COIN-M (the venue-mismatch/margining graveyard). 3 low parameters (divergence lookback, entry z-threshold, exit) keep it overfit-resistant.