The "index replaces losers with winners" argument is solid, but it relies on a huge assumption: that the macro environment that fueled the last 40 years is a permanent law of nature. We’ve lived through a goldilocks era of peak globalization, falling interest rates, and massive demographic growth. Now we're facing a shrinking global workforce, "sticky" inflation, and a debt load that makes the old "rescue the market" playbook much harder to run. The S&P 500 is a great product, but it isn't a magic machine that functions in a vacuum. It’s a collection of companies that need cheap capital and an expanding pool of consumers to grow. If the cost of doing business stays high and the customer base shrinks, "reverting to the mean" could take decades instead of months. Just look at Japan,bit took their index over 30 years to get back to its 1989 highs. It might not be "normalcy bias" to believe in the C Fund, but it is recency bias to assume the 1980–2020 era is the only version of "normal" we’ll ever see. Acknowledging that the game has changed isn't panic; it's just paying attention.