I must say that these studies illustrate well the general tendency to stop all interior evolution by the age of 30....
Many people are already "dead" or fixated in their evolution by 30 years of age....
This is why music is almost all a "nostalgia" business...
Yep, taste in movies, visual art, tend to be set by about the same age, with a bit more flexibility.
And since I have almost zero nostalgia connected to music, I remain open to new music. Music I listened to during my youth, either lives or dies in my mind, based entirely on its musical merit. I don't care how great the times were for me when I listened to specific recordings, if they don't hold up with regards to those attributes I mentioned in my previous post.
I constantly see on other music forums (stevehofflman), people claiming there is no good music made anymore. When the fact is, I have trouble keeping up with all the new, great music being released. I guess that is a first world problem.
Not to mention, the constant new threads there, about The Beatles, Stones, Dylan, CSNY, etc, etc.