Full-scale human evolutionary engineering is still far off, but, at some point in the future, it may well become routine. The challenge for humanity is twofold: to survive long enough to reach that point, and to cause the least amount of harm while getting there.
全面人种进化工程还远没有起飞，但是，在未来，它迟早会变成常事。人类面临双重挑战：一是要生存到那一天，而是要把它的危害降到最低。