how do you define safety programmatically so the vehicle knows what&#x27;s considered &#x27;safe&#x27;?  Measurement of g-force in sudden deceleration, acceleration, lateral movement?  Heart beat per minute of passengers?<p>Most passenger cars are far more capable than average drivers can exploit, so there is quite a bit of room for cars to drive very aggressively from human&#x27;s perspective, but completely &#x27;safe&#x27; from machine&#x27;s perspective.