This could be true. If so, their secondary metrics (e.g. # of near misses, avg distance to other cars, etc) should rise as Tesla use expands out of CA. Again,

This could be true. If so, their secondary metrics (e.g. # of near misses, avg distance to other cars, etc) should rise as Tesla use expands out of CA. Again, please note that all I'm saying is that the secondary metrics are the primary predictor here since they are statistically significsnf. The primary metric is just an order of magnitude check since we don't have enough data (note the width of my posterior) to do more than reject the secondary metrics if they are crazily off.