> The “best” had to be discovered and learned, and can be learned again in the future
Only if the conditions required for re-discovery occur in the future. Those conditions may include things like a thriving world market in high-performance acoustic pianos, the need to have only the best pianos played at court, the need for one king to be or appear wealthier than another king etc. Acoustic pianos may never be that important to humanity again, so it's not clear we'll recover all information we gained when they were.
Archeologists often try to reconstruct ancient practices. Although modern humans have the advantage of a much larger basis of knowledge, it's not always trivial nor even always possible to reconstruct old ideas.
Learning is a feedback loop process. Whether you can recover knowledge depends on how successfully you can replicate the feedback loop. And that depends on ambient factors.
Only if the conditions required for re-discovery occur in the future. Those conditions may include things like a thriving world market in high-performance acoustic pianos, the need to have only the best pianos played at court, the need for one king to be or appear wealthier than another king etc. Acoustic pianos may never be that important to humanity again, so it's not clear we'll recover all information we gained when they were.
Archeologists often try to reconstruct ancient practices. Although modern humans have the advantage of a much larger basis of knowledge, it's not always trivial nor even always possible to reconstruct old ideas.
Learning is a feedback loop process. Whether you can recover knowledge depends on how successfully you can replicate the feedback loop. And that depends on ambient factors.