Bitcoin Crosses Sixty-Six Thousand as ETF Flows Strengthen and Saylor Battles BIP-110

July 21st, 2026: Bitcoin breaks sixty-six thousand dollars as spot ETF inflows extend to five consecutive days-the longest streak since April-bringing in over seven hundred million dollars. Michael Saylor escalates his opposition to Bitcoin's controversial BIP-110 proposal with a comprehensive 110-point manifesto defending protocol neutrality. We examine Strategy's latest two hundred sixty-three million dollar stock sale boosting cash reserves to three point two billion, Cardano's landmark community-governed Van Rossem hard fork, institutional adoption accelerating from Bank of Korea's CBDC pilot to Hyperliquid's prediction market expansion, and macro crosscurrents as US debt approaches forty trillion dollars while oil retreats from ninety-dollar highs. Plus: Grayscale's staking payout proposal for Ethereum and Solana trusts, Allbridge's one point six five million dollar flash loan attack, and regulatory developments from UK banking inquiries to Russia's crypto law advancing toward final passage.