A career lasts 40 years. Once the technology is good enough to deploy in one instance, how long until it is dominant? Say it takes 10 years to replace most of

A career lasts 40 years. Once the technology is good enough to deploy in one instance, how long until it is dominant? Say it takes 10 years to replace most of the fleet. That still means someone driving a truck at age 25 will be facing an extremely different job situation at age 35. We could use the tech to enhance the worker instead of replacing the worker, though. Right now, drivers are limited in the number of hours they can do in a day, for safety reasons. If drivers become mobile managers, there is still a need for them. Still less of them, obviously, but it does mean we don't suddenly get rid of 80% of their job openings in 10 or 20 years.