“It’s not because explorers like you weren’t willing to shoulder the risk. Instead it was a blindness among our leaders that prevented them from seeing the true risk. And yet on Earth, we spend a trillion dollars on war without blinking an eye. With each passing year, the chance of a global catastrophe mounts—the climate, an epidemic, a financial crash, or a war that shrouds Earth in space debris and prevents us from reaching space. Possibly ever again. Humanity’s future depends on going—now, not later.