Great points, especially #4 (reminds me of the "No Speed Limit" post from Sivers), but I wonder about #3. It was (maybe still is?) common for lazy nerds to bemoan "Why couldn't I have been praised for effort instead of smarts as a kid?" as if that was the major cause of their laziness. I've suspected that even if they were praised differently it still wouldn't have helped many such lazy nerds because the effort required would still have been very minimal up until they hit their limits where things weren't so easy anymore without working hard (AP classes, college, sometimes all the way to grad school). As far as the effects of praise can shape someone I've figured getting praised for something you didn't do is worse than being praised for a trait, even if being praised for something you did do is better than for a trait.