This is incidentally one of the low-key issues that happens to a lot of soldiers - however attentive you are, ultimately you're going to get exposed to some loud bangs even if you're never in an actual war zone.
So there's a big demand for an effective way to restore damaged hearing.
And shooting enthusiasts. Decent ear pro significantly slows down the process, but it doesn't eliminate it. I'd love for my eye floaters and gradually-increasing tinnitus to be non-invasively curable (or at least treatable) before I die.
So there's a big demand for an effective way to restore damaged hearing.