I’ve tried some cheaper ones with mixed results. They are a cool technology, but also a matter of always putting on headphones or equivalent. A lot of people are in much worse condition than I am, I am fairly certain we have at least one person here with cochlear implants, but the future potential that implants like that promise can help a lot of people.
When I was in school, programmable calculators were just starting to be a thing and we could store entire notes in a program file.