Every December I start practicing classical guitar arrangements of Christmas music, just like I always have.

Take the hypotenuse.

This looks like a hype cycle pattern, and they are entering the trough of disillusionment phase.

https://en.wikipedia.org/wiki/Gartner_hype_cycle

I just now finished “The Dawn of Everything” by Graeber and Wengrow, which was an excellent investigation into early civilizations and a nod to their cultural implications for modern society. Looking to steal ideas for my queue in this thread!