Elon Musk’s fortune has surpassed $400 billion, making him the richest person in history according to the Bloomberg Billionaires Index. With a net worth of $447 billion, Musk’s success is attributed to the rise in Tesla’s stock value and the success of his private space company, SpaceX. Industry analysts highlight Musk’s ability to turn innovative ideas into action, though caution is advised regarding the sustainability of his investments, particularly in the nascent space sector.