Particularly in music.
Five years ago, I was 80% ambient music. I listened to it, I wrote it. While some techno was "cool", I thought it was more often redundant and obnoxious.
Today, I'm 80% techno. Some ambient is fascinating, but it's more often redundant and obnoxious.
Lately, I have been listening to Astral Projection. ...I feel a little guilty admitting that.
What are you listening to now that your younger self would have slapped you for?
[NP: Time Wolers by Astral Projection. And it's kicking ass.]