Agreed, the &quot;cars become autonomous&quot; problems are separate from the &quot;autonomous cars means nobody owns cars anymore&quot; ones.<p>I&#x27;m more optimistic about autonomy. It still seems like a crazy hard problem, but things are advancing so fast right now that it actually seems like they might get there.<p>But I don&#x27;t see where the leap from &quot;autonomous cars&quot; to &quot;shared cars&quot; happens. The main obstacle there is simply personal: I don&#x27;t think people <i>want</i> shared cars. People want autonomous cars (although they probably want the autonomy to be optional) so that hurdle is not a problem on that side.