Yeah, I think there are at least a couple somewhat unrelated points.<p>- Getting from, say, freeway autopilots to more or less arbitrary self-driving under a wide range of road and weather conditions without a competent human even present is going to be a lot harder IMO than a lot of people credit. I actually don&#x27;t think the NIST autonomy levels are that well thought out. I can&#x27;t help but think there&#x27;s a bit of &quot;and then a miracle happens&quot; between 3 and 4.<p>- Peak demand is definitely an issue. It&#x27;s not just commuting. Going away for a weekend has definite unidirectional patterns. There are also lots of reasons people will prefer personal vehicles, such as keeping stuff in them.