But in 2018, there was no reason to think that either the impulsive Musk or quirky, quiet Altman would become so central to the Silicon Valley narrative, even if they were already among its most prominent names. Musk, for one, had other headaches. Tesla was struggling to keep up with production goals of its Model 3 sedan and the stock was tanking, threatening the company’s future. Greg Brockman, a
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