I think Waymo is going about it the right way, given the reliability required: Solve 100% of the problems in a restricted environment, then gradually remove res

I think Waymo is going about it the right way, given the reliability required: Solve 100% of the problems in a restricted environment, then gradually remove restrictions on the environment and solve 100% of the problems after every step. I think this offers some divide and conquer benefits and guards against introducing sloppy hacks that are hard to disentangle from the system later. Sounds logical, doesn't necessarily mean it's true. I'm not an expert.