Gates had spent $10 billion on vaccines over the past two decades and asked Gates, “You’ve figured out the return on investment for that and it kind of stunned me. Can you walk us through the math?” Gates responded: “We see a phenomenal track record . . . there’s been over a 20-to-1 return. So if you just looked at the economic benefits, that’s a pretty strong number.” The interviewer pressed him: “If you had put that money into an S&P 500 and reinvested the dividends, you’d come up with something like $17 billion dollars, but you think it’s $200 billion dollars.” Gates continued: “Here,
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