On Thursday, Elon Musk’s SpaceX was forced to call off the latest launch attempt of its enormous Starship spacecraft. According to the almost-trillionaire, several engines failed to start, unintentionally serving as the perfect metaphor for the company’s persistent Wall Street woes. While a scrub of a rocket launch isn’t exactly anything out of the ordinary, it was the first attempt following the company’s blockbuster IPO last month. At first, S…