I expect to see one every few minutes in San Francisco. When I counted in August, 4 of 100 vehicles going past my house were self-driving (https://twitter.com/m

I expect to see one every few minutes in San Francisco. When I counted in August, 4 of 100 vehicles going past my house were self-driving (https://twitter.com/michael_nielsen/status/1687342994813562880 https://twitter.com/michael_nielsen/status/16873429948135628... ). I don't recall the exact time period, but believe it was just under half an hour.