Those were pretty interesting reads. As far as wearing 3 pair of socks; with the wicking ability of the wool, I guess this may be plausible. I recall winter survival stating that, should you fall through the ice, when you get out, roll around in the snow to absorb all the excess water (this is, of course, provided it is cold enough). With today's materials, most good outdoor insulation will retain upwards of 80% heat, which would allow you to at least (hopefully) get a fire started. I still cannot see a "boot of ice" forming, as the natural flexion of the foot, as well as evaporative heat, would, in theory, prevent this from happening. But, I've never tried it (I may now though), so, I am only speakinhg hypothetically here.