What about forgetting about weight. Unless you are a boxer or a jockey who cares. Measure size: waist in particular. It doesn't lie (and isn't affected by hydra

What about forgetting about weight. Unless you are a boxer or a jockey who cares. Measure size: waist in particular. It doesn't lie (and isn't affected by hydration), or lap times, or weight you can lift. It seems the focus on weight is picking the wrong variable to optimise for.