In all the previous chapters selection had a steward. The eye belonged to a person, the memory belonged to a person, the model of the world belonged to an organism, and every time there was someone whose question decided what would get high quality and what would pass for indistinguishable background.
Now we will remove the steward altogether.
It is easiest to start with a question children ask more often than adults: why is a chair never in two places at once?
The school answer is well known: quantum mechanics, they say, works for the small and does not work for the large, and somewhere on the way from the electron to the chair it comes to an end. This answer is convenient, hammered into textbooks and, unfortunately, wrong.