The "Buffett indicator," which compares total U.S. stock market value to GDP, has reached a record high of over 232%. This metric, along with the S&P 500 Shiller CAPE Ratio (currently 41, its second-highest point), suggests the stock market is flashing warning signs reminiscent of the dot-com bubble. Warren Buffett himself recently cautioned investors against getting too comfortable with short-term risky investments, calling it "gambling."