"Generational" might not be the correct word. What I mean is that pop¹ music from the 20th century transitioned from one style to another in a way where decades could have pretty distinctive sounds. 50s music was different than 60s was different than 70s was different than 80s. What I'm wondering: what is your perspective on pop music style change from 2000s to 2010s to today?² Has it changed or does it sound the same as it did 10-20 years ago?

The reason I ask is that I listened to a pop station recently and it seems barely different than when I was in high school pre-2010. Taylor Swift is still incredibly popular, and listening casually to other songs, I had no guess on what year they were actually produced. It could have been 2012 or it could have been last year. I don't know if I'm just getting old and I've lost my ability to keep up on the nuance of current trends or if it's that pop music has stagnated the same way Hollywood movies have - art that is analyzed and meticulously designed to appeal to the widest audience possible.

[1] - I'm defining "pop" as Billboard Top 40 or equivalent.

[2] - I think this only applies to "pop" songs. I haven't noticed the same trend in sub genres such as country, rap, latin, or metal. I am also sure the extent of style variation over time depends on the country.