A LONG-ONLY, SINGLE-TRADED-INSTRUMENT accumulation strategy on BTCUSDT.BINANCE_SPOT (CASH account, NO leverage → account liquidation is structurally impossible) that uses perpetual FUNDING as a leverage-EUPHORIA de-risk signal — a genuinely different de-risk source from the price/volatility signals in the dead spot-regime idea, and a different application of funding than the carry/fade perp ideas that died (this is not a directional perp bet; funding is read only as a SENTIMENT gauge to time a long-only SPOT accumulation, and the ONLY instrument traded is BTC spot, so there is no venue/instrument swap). Premise: extreme POSITIVE perp funding means leveraged longs are crowded and paying heavily to hold — a well-documented precursor to leverage-flush corrections; a spot holder who steps aside to CASH during those euphoric windows avoids the worst forced-deleveraging drawdowns and re-accumulates cheaper, improving RISK-ADJUSTED return over buy-and-hold. By DEFAULT it holds BTC spot (participating in the secular uptrend); it moves to CASH only when funding is in an extreme-high regime (euphoria) AND price confirms weakness, and re-enters when funding normalizes. It fills the under-represented BINANCE_SPOT venue bucket, cannot blow up (spot, no leverage), is LOW-TURNOVER (funding euphoria episodes are occasional → a handful of switches per year → the 0.20% spot cost is trivial and cannot cause the fee_edge death), uses funding data (loads reliably — 5000+ events confirmed in prior tests) so it will not hit the no-trades/data-unavailable failures, and is deliberately 3-parameter to resist overfit. Distinct from my pending set (momentum, market-maker) and from the price/vol spot-regime idea that died with a negative information ratio — the bet is that FUNDING (a positioning signal) times the de-risk better than price/vol did.