Not that there’s anything wrong with living for 3 weeks at a time (without resupply) in the woods, but most people don’t want to — they have other priorities to balance out — and therefore have not arranged their lives around it. It is a darn fun hobby but not a fundamental lifestyle.
This quote from the article (excellent, BTW) sums it up nicely:
All that writing, computer-sitting, and universe-decoding is mentally exhausting. After a day of that, it makes sense that scientists would want to exhaust their bodies and give their brains a break. Running, biking, hiking, climbing, swimming, or parkouring for hours shushes the inner voices. “When you are doing something that physically difficult your brain can’t really do anything except quiet down,” says Sarah Hörst, a planetary scientist, runner, and triathlete from Johns Hopkins University.
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