99.99% ? How does that statement work? I feel it needs more clarification. 99.99% means 1 in 10,000 "drives" has an accident of some sort? So 100 accidents per

99.99% ? How does that statement work? I feel it needs more clarification. 99.99% means 1 in 10,000 "drives" has an accident of some sort? So 100 accidents per million people/drives? Not sure how to compare if that is better or worse than what we have now.