Elon Musk became the world’s first trillionaire after SpaceX went public last week, with his shares in the company having an estimated book value of about $1.03 trillion. The article argues that this trillion-dollar figure does not represent cash Musk has in the bank, but rather a function of accounting based on stock value that will change daily. It notes that if SpaceX’s stock price dips in the future, Musk might not remain a trillionaire for long. The article defends the morality and legality of Musk’s wealth by rejecting the zero-sum fallacy that the economy is a static pie, asserting that Musk is creating wealth rather than hoarding it.