Everyone knows that the musical expressions of 14th-16th century white European men cultivate the most appealing qualities and are the least ephemeral.
I'm sure there's an 18th century biological treatise establishing that.
I know you're trying to be edgy, but it's actually objective fact that 14th century music still being enjoyed by millions in the 21st century is among the least ephemeral music.
I think his point is that we have no idea how long people will enjoy any of the music created today, nor can we really say how much people will be listening to classical music 100 years from now. Music from the 14th century is certainly more battle-tested, but there's nothing objectively "least ephemeral" about it that means it can't, or shouldn't, be bested.
I'm sure there's an 18th century biological treatise establishing that.