The thing that terrifies me is that the law in many industrialized countries would consider the structure that he built to be unfit for human habitation, due to multiple severe building code violations.<p>100 years ago, it would have been an acceptable dwelling, or even desirable.  Thanks to the pace of progress, in just 50 years, houses built to <i>today&#x27;s</i> standards might be considered too primitive for human habitation.<p>And you have to wonder what is going to be invented before then that will make us look at the homes we are living in right now and think, &quot;How did I ever live in such a backwards, primitive building?&quot;<p>We might not even realize the importance of it right away.  If you think about an indoor flushing toilet, it doesn&#x27;t seem all that remarkable, but now every residence needs to have at least one.  Grid power wiring isn&#x27;t all that glamorous, but every home has it.  The thing that changes everything might be <i>boring</i> at first glance.<p>And that&#x27;s terrifying.  A human can see a device with the power to change the entire world and still say, &quot;<i>meh.</i>&quot;<p>And also aliens would probably need to kidnap at least 10000 in order to maintain a stable breeding population.  Otherwise, the humans would have to establish some pretty strict rules against monogamy and inbreeding, <i>and</i> the aliens would have to carefully select a very diverse group to begin with.