According to CoinMeta, Janet Yellen, the chair of the Federal Reserve's San Francisco branch, stated on Thursday that further tightening of monetary policy may be necessary to reduce inflation, as inflationary pressures persist and are not confined to industries directly affected by tariffs or oil prices. She noted that an increasing number of businesses have informed her that they plan to pass on higher input costs to consumers, and there is a growing willingness among companies to raise prices. Yellen supports the Fed's decision to raise interest rates in September and to keep them unchanged in October. Regarding artificial intelligence, Yellen said that infrastructure construction is undoubtedly driving up some prices, but its impact on overall inflation is still relatively mild at present, with limited increases in costs that have not yet spread to other areas. She believes that current overall inflation is mainly driven by other factors, rather than goods related to artificial intelligence. Yellen remains optimistic about the long-term prospects for artificial intelligence in accelerating productivity growth, but it is still too early to determine when this will be achieved.