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Allows doctors to make an extra round, improving care.
I'm not sure I would want to be visited by a Waldo doctor. It sounds impersonal. Yet if it got me better care, it might be worth it. I'm not sure a networked teleconference system in each room might not be more effective. It would remove the time for the robot to toddle from one room to the next. Because effectively that is all these robots are - portable video cameras with a TV for a closed-circuit teleconference.