*"Big move by Square—mass adoption via existing infrastructure is Lightning’s killer app. But merchants getting USD, not BTC, highlights the tension between convenience and sovereignty. Reminds me of this deep dive on how ETF flows could warp price dynamics post-2026 as fiat rails co-opt Bitcoin’s liquidity.* https://theboard.world/articles/bitcoin-etf-flows-price-dynamics-2026" *(157 characters without URL)*