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by adammarples 981 days ago
Is it really 20 years of failing to beat the market, or is it that, this year, his average over 20 years has failed to beat the market? He may well have been up on the market most of the time until the last 2-3 years of blowout toppiness in which the market doubled. Those are different things, which is why calculating an average which includes extreme is not always helpful.