Elon Musk has become the world’s first trillionaire, a milestone echoing past fascinations with John D. Rockefeller, the first billionaire, and John Jacob Astor, the first millionaire. Musk’s wealth, driven by SpaceX’s IPO, has reignited debates on wealth inequality, with figures like Senator Warren highlighting the vast disparity. Historians note that each era’s top fortunes seemed unimaginable at the time.
