Wittgensteins "states of affairs" in the _Tractatus_ are scenarios, not structures. Modal explanation. Not an explanation that things are _thus and so_. Brandom clips from Metavocabularies of Reason#^843ef3. The downtown of language is not stating that things are _thus and so_; it is stating _we ought to do this_. Science in the modern era means forming deductive models (that is, logical and mathematical models) in such a way that manipulation of the model represents manipulation of the world.