I assume a withdrawal rate of 5% (slightly aggressive) and assume the endowment will be $150bn after the remainder of gates' assets are donated. I don't think t

I assume a withdrawal rate of 5% (slightly aggressive) and assume the endowment will be $150bn after the remainder of gates' assets are donated. I don't think thats terribly unrealistic. I certainly dont mean that they would spend $8bn nominal dollars each year; I am aware of inflation and the impact it has on returns.