Yep.  And if someone said, &quot;I&#x27;ve developed a nanoscale factory that has output fundamentally similar to what a biological cell has,&quot; that wouldn&#x27;t trigger my skepticism.  People who imagine that in the next few decades, we&#x27;ll have nanotechnology that is two or three orders of magnitude faster, less error-prone, more centrally controllable, and more versatile than biology do.<p>I didn&#x27;t say anything about AI or space elevators.<p>I&#x27;m not skeptical about hot fusion the way in skeptical about cold fusion.