True. But, at least for me, it's pretty easy to get distracted in a library or in a park. Plus, I think there's some added benefit in the fact that other peop

True. But, at least for me, it's pretty easy to get distracted in a library or in a park. Plus, I think there's some added benefit in the fact that other people around you are doing the same thing (ie thinking about big/important stuff). You can kind of see the same effect in study groups or even incubators like ycombinator. If the setting really makes no difference to you, I think the routine is still beneficial. Designating a time, every week (or day, or two weeks), going somewhere, and just thinking about life is a phenomenally beneficial exercise.