https://www.theatlantic.com/magazine/archive/2017/04/lessons-of-the-hermit/517770/
http://www.gq.com/story/the-last-true-hermit.
"Finkel quotes a handful of recent scientific studies to argue that Knight’s camp “may have been the ideal setting to encourage maximal brain function.” In her new book, The Nature Fix, about the growing field of environmental-health research, the journalist Florence Williams reports on dozens of studies that find that exposure to nature is “good for civilization.” A few days in nature yields a 50 percent improvement in creativity, increases attention span, and lessens hyperactivity and aggression. Proximity to the ocean correlates with one’s happiness, and mortality rates drop in greener neighborhoods, while traffic noise increases the strain on one’s heart. Put another way, our growing alienation from nature is killing us."
"Knight was largely reluctant to express any inkling of motives or insights gained through his experience, but he did offer, "solitude bestows an increase in something valuable ... my perception. But ... when I applied my increased perception to myself, I lost my identity. There was no audience, no one to perform for ... To put it romantically, I was completely free."