Melinda Gates on why the idea of too many people in the world isn't the problem we think it is.

True or false: We can prevent having too many people on the planet by making sure more kids stay alive on the planet.Are you kind of like ... huh? More kids? What kind of question is that? Fair enough, it does seem odd. But here's an approach to the answer that just might leave you saying, "Whoa, that makes a lot of sense!"

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