Quantified Self

"Why I Gave Up My Smartwatch" (Joan Westenberg) :

You end up managing the metrics, not the reality. You sleep longer, but feel exhausted. You hit 10,000 steps, but your knees ache. You meet every daily goal, and yet somehow, you feel like you’ve failed. This is not optimization. It’s simulation. It’s Borges’ map at 1:1 scale: impressive, but useless for navigation.