Waymo to customers: “Completely driverless Waymo cars are on the way”(techcrunch.com)

  Key Findings

  ∙ Autonomous vehicles would have to be driven hundreds of millions of miles
    and sometimes hundreds of billions of miles to demonstrate their reliability
    in terms of fatalities and injuries.

  ∙ Under even aggressive testing assumptions, existing fleets would take tens
    and sometimes hundreds of years to drive these miles — an impossible
    proposition if the aim is to demonstrate their performance prior to
    releasing them on the roads for consumer use.

  ∙ Therefore, at least for fatalities and injuries, test-driving alone cannot
    provide sufficient evidence for demonstrating autonomous vehicle safety.