Dark Output, Zcash Emergency Fork, 16 AI Headwinds, Red Waterfall Capitulation

Your daily bitcoin and macro intelligence briefing. AI-generated audio from the TFTC Bitcoin Brief newsletter, written and curated by Marty Bent. • SemiAnalysis "Dark Output" framework: AI is producing enormous economic value invisible to GDP, productivity stats, and the Fed's models • Jordi Visser validates the company brain architecture and argues you have to throw out old economic models entirely • Zcash emergency fork after soundness bug in Orchard ZK proof circuit, proving Peter Todd's case against consensus-layer privacy • Brandon Carl's 16 headwinds for AI: slowing revenue, 0DTE options creating 1987-style systemic risk, algorithmic improvements may eliminate chip demand • James Check's "Red Waterfall": net realized losses hit $2.06B, LTH-SOPR at 0.754, deep capitulation territory • HSBC commodity super-squeeze warning, Goldman hikes copper forecasts • Two small AI models outperform frontier models through composition Get the full written brief with all links, sources, and on-chain data — subscribe free at tftc.io/bitcoin-brief