If anything, it's the middle aged who refuse to believe that technology and music can just sort of stop progressing, while the young are downloading old music and shrugging about all the the tech hype surrounding corporate stock market bubbles.
What?
The stagnant pop music industry probably doesn't help, 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?