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> The goal (at first) is dealing slightly better with the average predictable situation than the average human driver.

The average human driver is terrible at driving. The goal should be higher; i.e., to be slightly better than the top 10% of human drivers. One of those skills will be refusing to drive when the weather is too bad.

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I totally agree, just the absolute minimum and the initial goal is matching or slightly surpassing that level. Once that happens I guess you'd expect it to get much better pretty quickly as well, which is good.

On the other hand we do let the worst human drivers (that don't immediately kill someone in the first hour of driving) onto roads too. The same low bar should be applied to autonomous cars as they are still scaling up. The bar should be raised as their percentage of the overall fleet increases. This treats them as a collective of junior drivers that we expect to improve with time.

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