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by samatman
748 days ago
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A filter can be good in a couple of ways: it can filter out ~all of what you don't want, and/or ~none of what you do want. Time is a good filter in the first way, which makes it a good filter. Because a filter which doesn't substantially do the first of these things isn't actually filtering: the null filter filters none of what you do want, by failing to reduce the data stream in any way. |
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