I was on a course from something like the Wilderness Education Association- basically training to be a "wilderness leader" (but the instructors were pretty clueless). Some things I learned: While in most places if it rains you will dry out after a few days, but it's so humid in alaska the only way to dry clothes is to wear them at night in a wet sleeping bag (it dries by morning). Glacier runoff rivers are no joke, we almost lost an instructor and a student while crossing. If you don't manage your food properly, you will end up subsisting on things like cake mix(!) for the last few days. When supplies get low, people act different (greedy).

There's a saying: "civilization is only three meals away from anarchy", that only made sense to me after day 28.

Cool. Thanks for answering