I'm not sure that argument is a complete route of the strong (or at least, stronger) hypothesis. The conscious creation of new words is often done using fusions

I'm not sure that argument is a complete route of the strong (or at least, stronger) hypothesis. The conscious creation of new words is often done using fusions or appropriations of existing words, per Lakoff's Metaphors. Over time, the meanings shift and expand, but it's not a raw, instantaneous act of creation, that, to your point, would seem to be impossible under Strong Sapir-Whorf. Now, we can, here and now, 'invent' a 'new' word from what we believe to be whole cloth. But it's hard to prove that that there's not some unconscious process similar to the above going on! That really all we're doing is finding the intersections of existing semantic distributions. Incidentally, my favorite SIGBOVIK paper: https://www.cs.cmu.edu/~tom7/papers/sigbovik2011tom7whatwords.pdf https://www.cs.cmu.edu/~tom7/papers/sigbovik2011tom7whatword...