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You need to very carefull to apply Kelly Criterion to stock market, as you cannot precisely calculate the p of your investments. If you assume a too high p then you will overbet and its only a matter of time to go bust (see N. N. Taleb MOOCS on Kelly). Thus the Kelly Criterion should be your UPPER bound for real-life investments with uncertain p, stay well below the betting amount what Kelly Criterion would suggest so that you stay longer in game.

Related to this, the best investors in the world are quite old guys. Why? Because they lived long enough to accumulate enough wealth to be of public interest.




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