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Retrodict
RETRODICT; if you see an ice cube sitting on the kitchen counter, you know that in a few minutes there will just be a puddle of water. But if someone comes in a bit later and sees only the puddle, they would have no way of knowing where the water had come from. You can't "retordict" the presence of the ice cube
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"Retrodiction is terrible -- normally," says Penrose. "That's what the second law is telling you. Yet remembering is 'what we do'. We retrodict with our minds all the time." Ultimately, he says, thermodynamics can offer only limited insight into our mental conception of time's passage. "There isn't a clear statement to say, 'Okay, it's the second law of thermodynamics.' That's no answer. There's is something much more subtle going on ... It has to do with awareness, it has to do with consciousness. It has to do with issues we're very far from understanding"
As for time itself, Penrose stops short of offering a definition. "I really don't know," he says. "I certainly would say that time is not what we think it is a sort of steady progression -- certainly not a sort of universal steady progression. ~ Page 242 /243
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