I started to blog something about this new Cal Newport essay, but then I thought: Why? Everyone already knows all this. If you haven’t changed your habits by now, are you likely to do so? Newport is right to say that there is precedent for a widespread transformation of American habits, but the difference between our current situation and the unhealthy-eating-no-exercise 1950s is that those previous bad habits weren’t nearly as addictive as the ones that are consuming human minds today.