Are you unaware of the distinction between qualitative and quantitative knowledge? Or are you suggesting that "attentive" owners have nothing to learn from meas

Are you unaware of the distinction between qualitative and quantitative knowledge? Or are you suggesting that "attentive" owners have nothing to learn from measurements? I work out every day, but I still wear my Bodymedia armband. I already know that my caloric burn was high yesterday, and I still get value from knowing how high.