I've been thinking about the resolutions tech leaders might make in 2019. This year, the Boy Wonders who run the biggest companies in the industry showed that they sometimes struggle to keep healthy, share their wealth - or slow down when necessary. A digital detox is the obvious prescription for Elon Musk. The CEO of Tesla and SpaceX moved markets this year when he tweeted that he'd secured funding to take the electric carmaker private at $420 a share. The stock jumped - and then fell as the deal failed to materialise. The tweet ended up costing Musk $20m (R282m) and the Tesla chairmanship. Musk's admission that 420 - slang for dagga - had been a joke fell on deaf ears. (Shares fell further after he was filmed smoking a joint legally, in California, while recording a podcast in September.) Earlier this year, Musk admitted to sleeping on the floor of the Tesla factory for days at a time during production of the Model 3 sedan. According to the New York Times, Tesla board members are ...

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