I do know that there are the differences between hearing aids and cochlear implants. While some might not benefit with cochlear implants or hearing aids, Looks like they're stuck with nothing. While there are some others who benefit with cochlear implants not with hearing aids, and there some can benefits with hearing aids don't need to get cochlear implants. Which means identifying differences between sounds, describing how pitch or loudness changes, and repeating back words and sentences, can hear phone and etc. (Most of those people are hard of hearing) I know two members of AD, that I've met in person can hear better with their hearing aids, Which Roadrunner and Vampy. I remember calling out his name and he turned around. It's like wow he can really hear with hearing aids, Same with Roadrunner too.