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“Imagine someone from that future could go back in time and talk to you—someone who lives at a time in which mankind only inhabits one planet, who is arguably among the final generations of humans capable of permanently changing the future of human cultures across thousands of planets by creating a durable culture and high-fertility-rate family that carries prosocial values into the future. Why would you tell them you didn’t make an effort to fix things while one person's efforts could still make a difference? ”