Although it's tempting to think of them as existing in a murky-yet-shiny future somewhere over the horizon, robots already perform hundreds of tasks for us and they've done so for a long time. They help put cars together and vacuum our floors and sort food in production facilities and inspect things like sewer or oil pipelines for obstructions. They do important things that, often enough, humans don't want to do or can't do easily.
However, there's one thing that humans can do very well that robots will be asked to do as well, and it's incredibly important: providing simple companionship.
