The takeaway for me is that fitness (of any type) is largely about producing, not just consuming.  You need to write to properly digest what you’ve read, and you need to exercise to properly digest what you’ve eaten.  My favorite characterization of this is David Eaves’ “if writing is a muscle, this is my gym” tagline on his blog.

So in the spirit of fitness, yesterday I went for a run and today I wrote this post