Where I live the temperature will only drop to about -17C.... Where I train(Northern Ontario), temperatures can drop to -45C. I regularly train in -15C to -35C during the winter and can tell you as a witness and from personal experience that these things are humanly possible.
The way Mr. Brown talks, you could get the idea that you can survive "living off the land" in almost any environment, without proper clothing and gear. Certainly there are places where such an idea is absolutelu ridicilous, and dangerous, as well as there are places where people with some luck could survive years eating cononuts
What Im saying is, that the idea of "living off the land" without a lot of experience in navigation, nutrition, first aid, and hypo/hyperthermia is dangerous. It's fun to train primitive skills, (why else would we be on this forum?), but to really go hiking without adequate gear is stupid, and is IMHO against the very idea of "surviving". For example, in the temperatures you mentiond, would you consider going hiking without a pair of good warm gloves?
But, as I said earlier, after reading about the environment mr. Brown inhabits, a lot of things make more sense to me
Offtopic: By the way, maybe we should make a new thread for survival techniques in extreme temperatures? I see there is some experience of the subject here :thumbup: