This is a weirdly common misreading of Mandelbrot. His main contribution was noting three properties of markets that are not well captured by Brownian motion models — 1. fat tails 2. heteroskedasticity 3. long-range correlations (eg power law decay in acf of absolute returns)https://twitter.com/desgrippes/status/1368389916812533768 …
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They really don't concern me. The human behaviour that influences their outcomes almost guarantees poor results. Most aren't emotionally cut out for this. All that matters is my performance. My thoughts on the market have served me well for almost a decade. All I need.
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I'm just sitting here thinking, what's smarter a dog or an octopus?
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