Simply put, in the absence of unknown and unforeseeable technical impediments, human evolutionary engineering is likely to become sufficiently widespread in the future to pose species-wide threats. So, while it may not be necessary to employ measures now to prevent harm in the future, it makes sense to identify which measures might be needed, together with the changes in social norms and behaviors that might be required to implement them.
简言之，在不存在未知和不可预见技术障碍的情况下，未来人类进化工程可能造成足以危害人种的威胁。因此，或许现在尚无必要采取措施防止未来伤害，但指出可能需要哪些措施以及那些实施措施所必须的社会规范和行为的变化是大有裨益的