I. The US$ 20 Billion Wake-Up Call On 7 Oct 2025 Intercontinental Exchange (ICE)—parent of the New York Stock Exchange—announced a US$ 2 billion strategic investment in Polymarket, valuing the four-year-old DeFi site at US$ 9 billion. It is one of the largest private financings in Web3 history and the clearest signal yet that prediction markets are graduating from crypto curiosity to core financial infrastructure.II. From Election Indicator to Reference Feed Prediction markets let traders buy...