Today's Chain Reaction covers major developments shaking the crypto markets. India has cracked down on prediction markets, blocking Polymarket and preparing to ban Kalshi under new online gaming regulations. Meanwhile, Glassnode reveals nearly five hundred billion dollars in Bitcoin faces quantum computing vulnerability, with exchanges holding the highest concentration of exposed coins. On the institutional front, Representative Nick Begich introduced the American Reserve Modernization Act to enshrine a strategic Bitcoin reserve into federal law for at least twenty years. Hyperliquid's HYPE token surged above fifty-seven dollars as newly launched ETFs attracted over twenty-five million dollars in fresh inflows, outpacing Bitcoin products on a market-cap-adjusted basis. Bitcoin continues trading near seventy-seven thousand dollars as long-term holders increase their supply to record levels, while XRP ETFs defy broader market weakness with forty-two million dollars in weekly inflows. We also cover SpaceX's IPO filing revealing eighteen thousand BTC on its balance sheet, Mark Cuban selling most of his Bitcoin holdings, and the ongoing brain drain at the Ethereum Foundation sparking community debate.