of course he graduated from the Uni of Colorado! 
I respect the cave dwellers I know here in Colorado. Love to try it for a season.
Don't know if I'd do it in such true desert. But the Colorado River is close by, running through Moab and Canyonlands NP. he could fish, but seems to scavenge instead.
Now I'm a huge Ed Abbey fan, and I think our Ed would have loved this guy, who loves the land.
anyone have his blog address?
and for those who are not into the cave dwelling aspect, but more sustainable:
http://www.dougfine.com/
this guy is hilarious. I actually bought Farewell My Subaru (and I hide it from my Suby's "view") and loved it.