1. How has the cochlear implant changed since it was first invented in the 70s?

2. Are there hearing-impaired people who choose not to get the implant? Why would they?

3. Are there any potential side effects to getting the implant?

4. Are there kinds of hearing-impairment (nerve related maybe) that the cochlear implant cannot repair?

5. What is the threshold age after which children implanted with a cochlear implant will still struggle with speech?