> All kinds of changes would need to be made by you and your body just to survive. From fitness level, to body fat percentage, and so on.
Sure, but if the wimpy guy hits the gym every day and has an optimal diet (but otherwise works their desk job, maybe with a standing desk, and retreats to their man cave), would you expect that to work roughly just as well?
I don't know how much actually being outdoors matters. I suspect that getting exposed to a forest environment; cold, bacteria/molds in the air, sunshine, and so on might matter too. Even possibly eating gamely animals.
I grew up on a farm, so I know that dogs that are kept outdoors, act differently than dogs that are kept indoors.
They are more aggressive, appear fitter, and smarter. I suspect their brains might develop differently from living outdoors.
Sure, but if the wimpy guy hits the gym every day and has an optimal diet (but otherwise works their desk job, maybe with a standing desk, and retreats to their man cave), would you expect that to work roughly just as well?