Yes those are examples of technology, but there aren't vast swaths of homeless lumberjacks and mathematicians. Humans are remarkably adept at learning new skill

Yes those are examples of technology, but there aren't vast swaths of homeless lumberjacks and mathematicians. Humans are remarkably adept at learning new skills when previous tasks have been automated. Traffic lights eliminated the jobs of police officers standing in the middle of the road with a whistle. That policeman didn't become homeless. He got reassigned to a more productive role or found a new employer.