Yes, it is a kind of knowledge—knowledge about what labels a specific group of people use in their domain, and so allows you to make predictions about what words they will use when speaking to each other, so it is a narrow kind of understanding. But it’s important not to equate “understanding of how people talk” with “understanding of the models they’re talking about”.
One reason I put this level in is so that you can recognize these “empty labels” as something that you need to fill in; i.e., you shouldn’t stop at “light is waves”, but follow through to finding out “what model of the world corresponds to light being waves?”
Yes, it is a kind of knowledge—knowledge about what labels a specific group of people use in their domain, and so allows you to make predictions about what words they will use when speaking to each other, so it is a narrow kind of understanding. But it’s important not to equate “understanding of how people talk” with “understanding of the models they’re talking about”.
One reason I put this level in is so that you can recognize these “empty labels” as something that you need to fill in; i.e., you shouldn’t stop at “light is waves”, but follow through to finding out “what model of the world corresponds to light being waves?”