>People have limited time. We need to figure out what form of excercise gives the most benefit for unit of time spent. optimizing for the wrong variable. ther

>People have limited time. We need to figure out what form of excercise gives the most benefit for unit of time spent. optimizing for the wrong variable. there's always time which could be spent exercising. people are often too stressed or tired to do it, or don't have enough motivation. flossing your teeth takes four minutes. but how many people do it?