Posted Feb 3, 2016, 9:33 PM
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Never Dell
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Join Date: Jul 2001
Posts: 19,804
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Much of it is about conforming to a proven standard, like x feet from a power line, railings of a certain dimension/type, etc.
More broadly it's also about not accepting any accident or rate other than zero. Perfection is hard to reach, but if your target is zero you'll strive for that, vs. patting yourself on the back for a time loss rate of 1.0 or whatever.
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