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by denton-scratch
982 days ago
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To distinguish between "is an illusion" and "is not an illusion", you need evidence that isn't observational. The whole point of illusions is that observational evidence is unreliable. A desert mirage in the distance is an illusion; to the observer, it's indistinguishable from an oasis. You can only tell that it's a mirage by investigating how the appearance was created (e.g. by dragging your thirsty ass through the sand, to the place where the oasis appeared to be). |
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