I think this is just a symptom of the fact that there will always be more "old music" than "new music"

The stagnant pop music industry probably doesn't help, though.

But why is the pop music industry stagnant, though?

There are fewer producers, executives, and financial/logistical obstacles to creatively expressing ourselves with music than ever.

Has everything been expressed? Are we as a people becoming less inspired? Is this part of an inevitable process with any medium of expression? If so, has our collective muse moved somewhere other than music? Will technological progress be found somewhere other than digital hardware?