True dat ... but that's not the point ... and we can discuss that when we take our Spring stroll through The Public Gardens.
I think my point might be summed up by looking at hearing in terms of potential. So given the part of the audio spectrum that I am able to hear fairly well, I had stuff to learn about what I was hearing. You're right that my hearing isn't going to be improved by paying attention. But without paying attention I'd still be clueless about things like decay time, crossover points, sound stage, bass integration, cone break up, power compression and cabinet resonance. Technically, Cheryl hears better than I do. I have learned to listen better.