“Reality is not digital, an on-off state, but analog. Something
gradual. In other words, reality is a quality that things possess in the same way that they possess, say, weight. Some people are more real than others, for example. It has been estimated that there are only about five hundred
real people on any given planet, which is why they keep unexpectedly running into one another all the time.”
―
Terry Pratchett,
Moving Pictures
