Numbers are too big now. Just before Halloween, Nvidia made headlines for becoming the first $5 trillion company in history. A week later, Tesla’s shareholders approved a pay package for Elon Musk that could be worth about $1 trillion in a decade. At a certain point, figures this large become uncomfortably meaningless. A million dollars is a lot of money. A billion dollars is a heck of a lot—so much that if you had it, you’d be a billionaire. Now try to imagine how rich you would be if you were