"TT, I can't imagine being without a good knife. However, over 90% of "survival" casualties are from cold in my area and they probably don't have your knowledge or skills."
I actually didn't have any survival skills or knowledge, save what I would have been able to merely think up, until I took a wilderness survival course at my local university. It was an awesome class, taught by a group of ex Air-Force pararescuemen. The head instructor used to teach survival to incoming pj recruits. The class was not only the best experience of my college career, it taught potentially life-saving knowledge and skills. Class learning was augmented by four field trips, two of them over-nighters. On the night trips, we were only allowed to bring issued gear. The issued gear did not include food, sleeping bags, matches, etc. Therefore, the learning curve was steep, 'cause it was cold!

Fortunately for us students,the instructors spent the night making rounds to all the different camp sites to ensure our safety (if not our comfort

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"A good tent and good sleeping bag would work for even the clueless. A knife? Seems like the folks who can do it all with a knife are rarely SAR targets."
Before taking the class, I couldn't imagine spending nights in the mountains, during the winter, without a beefy bag and secure tent. I had a vague awareness of the usefulness of a knife, but no concrete knowledge or abilities. So, you are right that a bag and tent do definitely have a place. I now enjoy not needing them and derive deeper pleasure from my wilderness activities, partly due to new-found confidence and peace of mind.
I think that wilderness survival training is a very important part of the outdoor experience. It's too bad that so few people know of the options available to get the training. It's also bad that we don't generally know the NEED for such skill acquisition, 'til it's too late.
In a nutshell, I can't believe that I used to go backpacking without the knowledge that I have now, due to the classes. 'twould that everyone could have the same opportunity.
