From the stories that go into detail about google's self-driving cars, it really seems like at this point the driver-take-over situation is really more like a b

From the stories that go into detail about google's self-driving cars, it really seems like at this point the driver-take-over situation is really more like a breakpoint than an actual safety valve. It's there for when the computer has multiple reasonable options and the driver's judgement and awareness is needed to help resolve the ambiguity not just for that ride, but for future rides as well (as a sort of feedback).