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Independence is important to intelligent decision making for two reasons. First, it keeps the mistakes that people make from becoming correlated. Errors in individual judgment won’t wreck the group’s collective judgment as long as those errors aren’t systematically pointing in the same direction. One of the quickest ways to make people’s judgments systematically biased is to make them dependent on each other for information.

'We had a different form of chinging,' Eunice said. 'An earlier type of virtual-reality technology, much more robust and completely unaffected by time lag. You may have heard of it. We called it "reading".'

Writing (and reading) is a sort of exercise in empathy, I think. In life, when you encounter people, you and they have separate trajectories, each person pushing in a different direction. What.s remarkable about fiction is that it places you in the uncommon position of having no trajectory. You stand aside, motives abandoned for the duration. The characters have the trajectories now, while you just observe. And this stirs compassion that, in real life, is so often obscured by our own motives.