translation.en: These are some designs from Eric Drexler's book -- which we're now showing are feasible with super-computing simulations, where actually there are scientists building molecule-scale robots.
translation.zh: 从Eric Drexler书中的设计来看， 我们所展示的， 都是超级计算模拟出可行的设计， 科学家们正在制造 分子级的机器人。