The next explosion comes from Tim Noakes, the Discovery Health Chair of Exercise and Sport Science from the University of Capetown in a commentary ( Role of hydration in health and exercise) in which his take can succinctly besummarized as, if you get thirsty you should drink and that over-hydration is a much more common and dangerous risk to the athlete than dehydration.
In an interview with the paper, he summarized his message: "You're responsible for your safety, and you shouldbe responsible for the person next to you, " he said.