12:00-21:00 Keywords: Musk, Federal Reserve, Cardano, Hong Kong 1. The Bitcoin network transaction fee is reduced to 2 Satoshi/byte; 2. Musk: An independent Grok app is about to be launched. 3. Ernest & Young: The Federal Reserve is cutting interest rates reactively, not forward-looking; 4. Many people were charged with helping credit for using the underground industry trading platform to trade "U coins" to earn the price difference; Bitcoin miners earned $534.91 million so far in September, or the lowest monthly income in 2024. 6. Hong Kong Financial Secretary Chen Maobo: The Federal Reserve has cut interest rates by 50 basis points, and the general environment has gradually turned relatively favorable; 7. Cardano founder warns that Trump's DeFi venture investment could politicize the cryptocurrency landscape.