[combatentropy]

I came here to say the same thing and was glad to see someone else already did. So I simply upvoted you.

I might add that also he was looking for two more things that some times also are rejuvenating:

(c) physical exercise

(d) a relief from decision fatigue: "I did not want to be asked to make a lot of decisions everyday. . . . I wanted literally to be told what to do every day and I wanted that structure to be rigorous." This can get old after a while too, but routine can be a nice change for a while, if every day you at your old job you had to be a creative or always solve new problems, like if you were a designer, director, etc.