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Variance also increases with age. But empirically not the most extreme outliers. I.e., so big successes are more likely when older, but once-in-a-generation (MS, Amazon etc) are different.
Oops: the first sentence is based on the paper. The second sentence is my observation (about Gates, Allen, Bezos, etc...)
Support for your second observation https://hbr.org/2014/04/how-old-are-silicon-valleys-top-founders-heres-the-data …
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