There once was a little girl named Clarissa. There is now a boy named Clark living where Clarissa used to live. Clark doesn't know much about Clarissa, but Clarissa knew lots of Clark. Like that Clark knows that his name is Clark, and that Clark really likes his friends, Neil and Mary. Clarissa also knew that Neil and Mary live in the same building as Clark.
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Clark doesn't know much about Clarissa personally, but also knows that Clarissa's old classmates, Neil and Mary, lived in the same building as Clarissa.
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Are you confused yet?
Me too.
But neither Clarissa nor Clark knew nor knows that we are.
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Clarissa had always known that Clark was going to be living where Clarissa was living. Clark knew that Clarissa had lived there, in the same spot in the same room in the same apartment that Clark lives in now.
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Everything Clarissa knew Clark knows as well. Everything Clark was taught Clarissa was taught that very same thing by that very same person.
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Clarissa knew it would take a very long while for everyone to get used to Clark. No one had ever met Clark before. But actually, everyone knows Clark. It just so happens that Clark looks different from what everyone saw Clark as before they knew Clark.
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