Let’s assume that someday you will have, in your home, a humanoid robot helper. The robot, because it’s shaped like you, can use your tools and move easily around your house. It folds the laundry, it helps your elderly mother up the stairs, and on Sundays it makes brunch for the family. It’s capable of handling almost any household chore you can throw at it.
Now let’s imagine that you’re out on the lawn, kicking a ball around with your son. Your robot helper is in another part of the yard, its back to you both, fixing a drainpipe.