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View Diary: Dear President and Mrs. Obama: About Your Children's Playground (79 comments)

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  •  Then these are merely hypothetical? (0+ / 0-)
    •  Logic... (0+ / 0-)

      Try to follow me.

      If tires are not used, something else will be used in their place. Presumably the something else either does not prevent injuries as well or costs more/is otherwise less efficient than tires.

      Of course, you're correct, it is hypothetical in the sense that if there is no rational reason to use the tires to begin with, then the conclusions are not valid.  

      •  Presumably (0+ / 0-)

        Presumably the something else either does not prevent injuries as well or costs more/is otherwise less efficient than tires.

        It is hypothetical in the sense that you are presuming.

        There may be a rational reason to use the tires, but that doesn't mean there are no suitable alternatives.  It seems that one reason to use the tires is to recycle rubber, but there are many other ways to recycle it without using it as playground mulch.  It may also be effective at cushioning falls, but that doesn't mean there are not other materials that are equally effective.

        In any case, when I asked the question, I was hoping someone around here might actually be knowledgeable on the subject and could provide an answer based on more than presumptions.

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