This is a very difficult way. I must remember that. From traversing it before, I remembered the inexpensive, healthy, protein-rich food and access to a world-class research library, but the experience has other dimensions.
The "quarantine planet" episode of the new Who comes to mind.
Although I should be more circumspect, as I've not yet quite lived up to the circumstance. Still a bit like a fellow punched randomly in a civilized place, or who wandered accidentally down a difficult side street. Strong, but befuddled, and very much not of the place. It is possible to rise to the circumstance, become a monk/ninja/knight/whatever of the place, and survive that way. But this is a function of time.
Absolute discipline and teetotal, of course, but still a bit of Touchstone in the forest. Corin's shearling coat might become necessary. A function of time, conditioned by identity.