Flow is the Opiate of the Mediocore

I don't think that what is being condemned here is flow.

When I used to practice the piano several hours a day I was in flow, but I wasn't running through my pieces. Flow was what made me able to play through the same measure thirty times in succession, stop and think about what I needed to do differently, then play it through thirty more times, without losing my concentration.

Playing through is not difficult enough to be flow. The article has valid advice but it's nothing new and the title is wrong.

http://upload.wikimedia.org/wikipedia/commons/f/f6/Challenge...

This article is focused on practice and growth. There's a distinction between the work required for improvement and the state required for productivity. To me, flow is more about productivity.