Earlier quoted context omitted.
The obvious problem with steer-by-wire is that in the traditional design, it's not uncommon to lose power assist but not the mechanical connection to the wheels, so you can still steer the car. To completely lose steering control you'd need significant mechanical damage. If the whole thing goes through the computer then there are lots of new ways to fail. Steering wheel position sensor goes bad on the highway? Comput…
Of course, a counterpoint is what's been happening in aviation. Autopilot became a thing. Autoland became a thing. And, to keep improving planes (first military planes, then commercial aircraft), it was much easier to drop the mechanical connection to the wings. Autopilot started as a help to pilots, and evolved to something that is a necessity and pilot control inputs are "suggestions" or "goals", not inputs like tu…
Cars are non of that and we have billions of them on the street.
Cars also became a lot more expensive due to their complexity which def creates problems for a lot of people who can't afford all of that. I'm really torn by this because I think its very good that my side mirror shows me if there is a car next to me but in our capitalistic economy, we are excluding a lot of people from affordable cars. Drive by wire needs to be cheaper and easier to fix/repair.
Btw. Waymos are slowly learning to drive on highways so I might agree that they drive saver than humans in certain controlled envs. For sure not in any environment.