Elon Musk's fortune has fallen below $700 billion for the first time since December after another sharp drop in SpaceX shares. The world's richest person has now lost around $750 billion in net worth since reaching a peak of $1.45 trillion in June, ending his brief stint as a trillionaire. Despite the massive decline, Musk remains comfortably the wealthiest person on the planet. 📸 Getty #elonmusk #trillionaire #spacex #news #money