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> I usually don’t care how much I weigh, as long as I look fit.

You can’t visually spot a couple pounds difference when it’s spread over your entire body, but the scale will reveal it. Visual alone is a very lagging indicator.

Furthermore, visual checks are prone to drift over long periods of time. Weight (fat) gain doesn’t happen suddenly, so relying on visual indicators is prone to error.

It’s not hard to see why people use the scale. It’s a precise device with a short feedback loop and the numbers don’t lie. People aren’t dumb, if they gain muscle they will update their target weight.




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