Naming a phenomenon should imply some inference
If we call all phenomena with features with (x and y) a specific name, we are either implying that x and y are correlated with each other unnamed phenomena with features (x and z) or (y and z). Or, we are implying that a phenomena with features (x and y) is especially correlated with other properties.^[ Rationality, From A to Z#^6f364d]
Another way of putting it: Proper naming conventions should give us a hint about how the properties of the named phenomena are distributed in Concept-space.
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Another reason to prefer adjectives: Naming a phenomenon should imply some inference, and we don’t want to imply negative inferences (i.e. stereotypes).
For example, Naming a phenomenon should imply some inference, so not all random phenomena should have names, giving us the impression that they occur more often than at random.