Federal Reserve Chair Jerome Powell has dismissed concerns that the current wave of investment in artificial intelligence (AI) represents a bubble, highlighting that technology firms are generating substantial cash flow. This statement comes as the Federal Reserve reduced interest rates by 25 basis points to a range of 3.75%-4.0%, indicating a shift towards a more neutral monetary policy stance. Powell also noted that while the U.S. economy remains robust, there are increasing risks of a cooling labor market. The rate cut marks the end of the Fed's quantitative tightening, with the next policy decision scheduled for December 1.