- About $10 trillion of 401k money sits in a $77 trillion stock market, mostly through target date funds and S&P 500 funds. Roughly 30% of every S&P 500 dollar lands in five AI-heavy tech stocks.
- Four bubble signals run hotter today than before the 2000 crash: top-ten concentration, tech's share of the index, the Buffett Indicator, and how much of the market index funds own.
- You only lock in an AI bubble loss if you sell. The 2022, 2020, 2008, and 2000 crashes were all buying windows for long-term investors, and the US-China AI race means government money could keep flowing in.











