> I was talking about language acquisition specifically.
Yeah, humans don't acquire language separately from other experience.
> Most of the data that you reference is visual input and other body sensations that aren't directly related to that.
Visual input and other body sensations are not unrelated to language acquisition.
> OTOH humans don't take all that much text to learn to read and write.
That generally occurs well after they have acquired both language and recognizing and using symbolic visual communication, and they usually have considerable other input in learning how to read and write besides text they are presented with (e.g., someone else reading words out loud to them.)
