According to the article, Warren Buffett’s preferred stock market indicator, which compares the total value of publicly traded companies to the US GDP, is flashing warning signs. The indicator suggests that stocks are overvalued and a market crash could occur by 2024. The surge in AI and tech stocks, fueled by the AI boom, is a major factor driving the market’s high valuation. The article cites examples of companies like Nvidia and Microsoft experiencing massive gains due to their AI capabilities. However, some experts argue that the indicator may not accurately reflect the true value of AI and tech companies, as their potential is difficult to quantify. The article also notes that Buffett has been cautious about investing in AI and tech stocks, preferring more traditional value investments. Overall, the article warns that the stock market’s high valuation, driven by AI and tech stocks, could lead to a correction or crash in the near future.