> They can't come out right away and say "guys we failed at self driving, it doesn't work", that would tank the personal careers of everyone important in the co

> They can't come out right away and say "guys we failed at self driving, it doesn't work", that would tank the personal careers of everyone important in the company. That's exactly what would happen if a newly developed product killed some people. A human assisted rollout is a cautious strategy that allows them to learn in the real world without exposing their massive R&D investment to the fate of Uber's.