S&P 500 earnings look flattered by AI spending: hundreds of billions in AI capex become immediate revenue for sellers of chips, servers and cloud capacity, while buyers amortize the cost over years. Revenue explodes now and the pain shows up later, so Wall Street raises estimates and stocks get even more expensive. That looks worryingly like a dot-com 2.0, and the risk is what happens when AI spending slows or stops. x.com
