Time On Task

I believe that the single-most important ingredient to success in any field is time on task. "Outliers", et. al talk about the magic 10,000 hours. The Talent Code calls this "deep practice". Yes, time on task should be focused, but it doesn't always have to be so - sometimes simply putting in your time is enough.

I think I've mentioned this before but, if you are trying to lose weight, for example, one reason to do an hour or more a day of walking is to keep yourself away from the tube and mindless snacking. The time on task walking equals time OFF task eating, and that is time well spent. In addition, walking is readily accessible, and less likely to severely impact recovery - you can do it more often than, say, burpees...