Larry's Market Comments at Critical Points

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wld, imo the trading system and the position size are two linked issues that cannot be easily separated...
i am trying to find a mathematically optimal answer for the position size given the following trading system characteristics: win probability, stop loss percentage, average gain/loss...
so i am interested in how top traders approach this issue both conceptually and in actual practice...
my goal is to distill best theoretical approaches used in actual trading into a semi-automated trading system...

and, surprisingly (to me), i find this goal to be eminently achievable despite the seemingly idiosyncratic and individualistic nature of the trading approaches employed by top traders..