Fair enough..... I should have explained myself better.... To take these words literally is a mistake. It is a broad statement... There will always be extreme situations that you cannot be prepared for. I don't think anyone could survive the example you laid out, Elen. We have to be realistic and my statement hinted otherwise... for that I am sorry.
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.
Being dropped of in the Siberian permafrost area without proper clothing is an EXTREME situation...... Antarctica?..... out of the question.
You are bombarded with broad statements everyday..... "Seatbelts will save your life in a car accident".... "Smoking will shorten your life"... "Blah-blah, laundry detergent will get out the toughest stains"... "Milk does a body good." (unless you are lactose intolerant) You should be smart enough to understand the limitations of these statements. It is far too easy to take someones words out of context.
Again, sorry for the misunderstanding.