Frogman, assuming I'm 18, and decide to become a jazz musician. I could go to Juilliard School of music, and graduate with honors as being one of the best on my instrument; that would not make me a jazz musician of note for sure.
The ability to start with a blank sheet of paper and create something is reserved for the very few.
There are jazz musicians of note who never went to any school, but they could create; that's a special ability that few of us have.
While I could excel at playing someone else's music without a doubt, the question of whether or not I could improvise on the spot, and also create "new" music would determine my rating as a jazz musician.
You say I'm stuck in the past; well I've been stuck for a long time, and all these new records that get no play verify that; the records that get posted on this forum that I've only heard for the first time, that I rave about as must have records, also verify my reality as being one that's in the past.
I think you have made a very good assessment and evaluation of my taste in music, it's in the past.