Indeed, optimism over AI is a key factor supporting a stock market facing numerous headwinds. Those include uncertainty over the U.S. Congress coming to agreement to raise the debt ceiling and avoid a default, and worries the economy may be on the verge of a downturn, as the Federal Reserve's interest rate hikes filter through the economy. "We are strongly of the view that AI will change the world," Jim Reid, strategist at Deutsche Bank, said in a note titled, "Will ChatGPT prevent the US recession?"