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As Tesla observers try to understand how and why the stock has tripled in a little more than three months, analysts are second-guessing the notion that the Model 3 maker will be caught anytime soon.

Eskom has admitted it has a solution to its highly unreliable ageing fleet of coal power stations. This time, however, the plan is not the clichéd definition of insanity (which seems to have been the plan over much of the last decade).