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there must be some procedure
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which is beyond the person
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who is administering that rules,
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how the rules can be changed. Right?
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This in order--
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you have to prevent unpredictability in the system.
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And that's why rules change all the time.
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But the fundamental principle is
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that these rules should not
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be allowed to be changed by the person
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who administers--right?--those rules.
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So just to give a very trivial example,