youzicha replied to your post “I should really stop shitting on Wait But Why because I have work to…”

Well, but can’t you just rescale the frequencies? I.e. 20kHz sounds would be coded to where 10kHz ones go, leaving space for encoding a bunch of higher frequencies. (at the cost of less frequency resolution at the forme audible range—but I could imagine that dogs also have less resolution, if there total about of brain devoted to audio processing was similar.)

You’d need some time to get used to it, but after that I imagine your subjective experience would be similar to what a dog gets, because both of you are processing similar nerve impulses corresponding to the same external sounds.

This is a good argument that it may not be impossible in principle.  My objection to the bit I quoted was that it seemed to be saying this was a relatively trivial thing to do with BMIs, like the cochlea was an annoying barrier and once we could feed the auditory nerve directly we could just plug it into a raw audio source.

I didn’t read every word of the post, but I don’t think it talked about causing this kind of dramatic plasticity with a BMI, even in its most futuristic sections.  So I think he would have said something more than “that’s easy” to describe how such an approach works.