Of course, this time technological change could be different, and one should be careful in extrapolating the experience of the last two centuries to the next two. For one thing, mankind will be confronted with more complex economic and moral questions as technology accelerates.
当然，这次的技术变迁或许与以前不一样，在将过去两百年的经验推广到未来两百年时需要慎之又慎。一方面，随着技术的进步，人类总是会遇到更加附在的经济和道德问题。但是，即使技术变迁出现了加速，也不意味着未来几十年一定会出现失业的大幅增加。