For some things, this makes a lot of sense: read something technical (preferably while taking notes) for twenty minutes a day; work on a small problem (brain teaser, programming koan, etc) every day; get some exercise everyday; etc, etc. And certainly, this applies to hiking as well (just ask anyone who's hiked the PCT).<p>To me, creativity doesn't seem consistent, though. I might come up with a great idea and pound out code to implement it one day, then get stuck the next. I don't see how someone could force themselves to "hike twenty miles every day" in terms of creativity. Also, sometimes you have to push yourself to grow or improve. Not saying that "twenty miles a day" isn't pushing oneself, but if you get comfortable with that, you might want to try pushing to "twenty-one miles a day".<p>The part about planning and paranoia is spot on though: even if your plan has to change (which it will), if you're paranoid enough, you will have backup plans.