“A lot of EAs chose not to have kids,” said George. “It’s because of the impact on their own lives. They believe that having kids takes away from their ability to have impact on the world.” After all, in the time it took to raise a child to become an effective altruist, you could persuade some unknowably large number of people who were not your children to become effective altruists. “It feels selfish to have a kid. The EA argument for having a kid is that kid equals happiness and happiness equals increased productivity. If they can get there in their head, then maybe they have a kid.”