Michael Burry has issued a warning that U.S. household stock wealth has surpassed real estate holdings, a pattern observed before significant bear markets in the 1960s and 1990s. Burry attributes this trend to factors such as zero interest rates, economic stimulus, inflation, AI hype, and gamified trading. He also notes that passive investing now accounts for over 50% of the market, potentially exacerbating future market declines. Burry's cautionary note suggests that traders should keep an eye on altcoins as market sentiment shifts. Additionally, the fear and greed index remains a crucial tool for gauging market extremes, providing insights into potential turning points in investor behavior.