you can get as close as you can get to proving it. Telemetry data can be quite detailed.
Look, if we’re talking forcing people to do something that’s one thing. But if we’re talking a well-vetted and tested self driving car system (like Waymo after they fully release their fleets in an area) being safer than even good human drivers, I’m pretty confident in my assertions.
As someone else said, the debate shouldn’t be over safety, it should be over control and freedom.