Widget,
The generally accepted stages of hypothermia (this part copied from "Medicine for Mountaineering" by the Mountaineers (highlights are mine):
98 - 95F Sensation of chilliness, skin numbness, MINOR IMPAIRMENT OF MUSCULAR PERFORMANCE, especially of the hands.
95 - 93F MORE OBVIOUS MUSCLE INCOORDINATION and weakness, slow stumbling pace, mild confusion and apathy.
93 - 90F GROSS MUSCULAR INCOORDINATION with frequent stumbling and falling and inability to use hands, mental sluggishness with slow thought and speech, retrograde amnesia.
90 - 86F Cessation of shivering, severe muscularincoordination with STIFFNESS AND INABILITY TO WALK OR STAND, incoherence, confusion, irrationality.
At any point in this, on steep terrain, one might find that continuing on is unsafe. The choice may not have been just to drive on. The mind is a very powerful thing, but it cannot overpower hypothermia. In fact, one of the early signs is the person making poor decisions.
The response to hypothermia is not the same for everyone. A complicating factor like mountain sickness or even a cold could have contributed to one person succumbing first. Body conditioning, shortage of food or (one of the most common problems especially among light and fast mountaineers) dehydration and many other things can influence the succeptability to hypothermia. Sweating, clothing and clothing use are also important factors. It is very common for one member of a party to become hypothermic while others in the same group do not.
I will not speculate if or why the other members of his party did not intervene sooner. They might have but were left no option except to do what they did or the person may have hid the early stages from them. With what we know it would again be speculation. What choices they made and why they made them I don't know and may never know. This is not the first (or unfortunately the last) time that the choices made led to the death of a climber. Would I have made the same choices, I don't know, I was not there. Would different choices (once the situation took hold) have made for a different outcome, we will never know. Can we evaluate the situation and think about what we would do -- ONLY if we know the true situation. Or we can look at several possibilities and how we would react to them.
I was talking about mountaineering when I discussed light and fast. Although my comments would also hold for trail hiking, they are double for mountaineering. I totally agree with you that what you pack for weather is a compromise. A good climber will be VERY cautious about weight. It is just that I see too many people in the hills that, IN MY OPINION (for whatever that is worth to others
have chosen poorly. Many of these people I have seen as I assist them out of the mountains. I will say that I see fewer super light and fast advocates among the rescue community than outside it.
Again, my comments are not directed at this incident.
Respectfully,
Jerry