Could Scott have survived with today's physiological knowledge?

In 1911, members of a British expedition walked across the Antarctic to the South Pole, but in the punishingly hostile environment, retracing their steps back to the edge of the continent proved fatal. Over the last 100 years, knowledge about human physiology has greatly increased and, on the centenary of this most extreme of all journeys, this essay explores the true extent of the physiological stress experienced by the men involved and whether their fate was inevitable.