Or traffic lights? They replaced traffic officers, and while some are timed some take in different signals to make a decision about when to change the light. Th

Or traffic lights? They replaced traffic officers, and while some are timed some take in different signals to make a decision about when to change the light. They are even called "robots" in South Africa. Or the automated telephone exchanges? They replaced human operators. Elevator operators were nearly all replaced by robots as well. Can one robot replace three robots? Would this encourage the building of multi-functional robots over single-task ones, because of lower taxes? Perhaps the paper describes these in more details, but "You do not currently have access to this article."