It's in the same vein as trying to talk to younger kids about movies that were released before they were born. So much content is coming at them that they just haven't watched (or heard music) much older stuff. It's not that they are against it, they just need to be introduced to it.

Hm, the 18-20 year olds I know know EVERYTHING from YouTube; they are really digital experts in past urban trends. I had a discussion (and subsequent alcohol excess where an old communist joined-in) on a customer event the other month with mid-20s customer supporters who described themselves as neo-punks (with lots of metal in the face) and were big in "dark" music and knew every single politically-incorrect dark metal band from the 90s. Also, it's not uncommon to enjoy a Jean Gabin or Film Noir movie, say, for the ones I know.

Hey, CBL made the cut. I think the path was released in 1998... Vibrasphere is also ancient, as was juno reactor. It is also very weird to see psybient classified as a sub genre of psytrance and with prominent artists such as Shulman missing. Not the best list in my humble opinion.