A good example - again, presuming that's all accurate.
...and I *personally* don't think the "can't create a model" language is helpful to the whole exercise. It's way too open to interpretation, and inconsistent with how many of us think about what we're doing. If there are particular things that we do or don't want the rules to allow, we need to make sure that the rules are internally consistent, at the level of detail at which we tend to use them, to make that so. This, instead of counting on an over-broad statement to handle it.
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