This Browser episode is about running. The main interesting insight to me is that part of the reason that running gets you into a “flow state” (gah, so tired of that term) reliably is because running is something you can do which has a low chance of failure, unlike, say, writing or programming. Most people know how to put one foot in front of the other.
The other interesting thing is that Lindelani mentions in passing that running help build up the mental fortitude to play the Souls games. That stuff is everywhere. I was listening to an interview with this death metal guitarist that mentioned that one of his bands was yet another Souls metal band.