The problem with this is the limits of human attention.  It&#x27;s hard enough to maintain focus on long drives as it is; if the &quot;enhanced cruise control&quot; takes over the job entirely, the driver will have nothing to do and is likely to stop paying attention to the road at all.  Then he&#x27;ll either miss his chance to take manual control, or do so in a state of panic.<p>Google has been making arguments along these lines -- for instance: <a href="http:&#x2F;&#x2F;gizmodo.com&#x2F;why-self-driving-cars-really-shouldnt-ever-have-steerin-1758292942" rel="nofollow">http:&#x2F;&#x2F;gizmodo.com&#x2F;why-self-driving-cars-really-shouldnt-eve...</a>