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After selling PayPal, Musk found himself with newfound financial freedom to pursue his grand aspirations. In 2002, he founded SpaceX with the goal of revolutionizing space travel — aiming to be the "Southwest Airlines for space." His commitment to his vision was unwavering, even when faced with financial ruin. When he discovered a team working on a fully electric vehicle, he invested heavily in it, which would later lead to the creation of Tesla.