How to Chase That Extra Nine of Reliability Every Time

We collect a lot of data from those L3 vehicles, right? And that allows us to see a whole bunch of really strange things. That's not even enough because humans in America drive about 100 million miles per fatality. So we can't necessarily say just because we've driven X millions of miles in real life or in simulation, that's good enough. We also don't want engineers have to go change all of our software so we can fix this one corner case and then make others worse.