You might have seen in the press recently what I think is one of the most depressing photos of our time, a traffic jam on the summit of Mount Everest. Hundreds of climbers bottlenecked in a queue to get to the peak, leaving a number of them dead and frozen, and everyone else slowly running out of oxygen.

Guy Noble Guy Noble

What is going on here? Greed, yes, the Nepalese giving out too...

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