Billionaire Elon Musk has legions of supporters. For the die-hard Musketeers — what I call his followers — his past and current successes disrupting entire industries with PayPal, Tesla Motors, Solar City, and SpaceX are well documented. What is much less, if ever mentioned, in interviews is one of the most basic and important skill sets he used to catapult himself toward his current legendary stratospheric status.

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