Railway Mania, the birth of the S&P 500, and the lesson for the AI era

Britain built the railways and still ruined a generation of investors in 1846. What sorted the winners from the wreckage was measured ROI, not conviction — the same sorting now beginning in AI, and the reason the S&P 500 bears the name of the man who standardized it. The post Railway Mania, the birth of the S&P 500, and the lesson for the AI era appeared first on CloudZero .