Has American pop culture plateued?

Last century, pop culture was very well defined per decade, as things were always changing.

Changes in musical styles were very well defined.

So was fashions.

So was movies.

Now things are just sort of refining, but not necessarily changing.

In the past decade, I can't really think of anything ground breaking to shake up music, fashions, movies, etc.

I see refinement of things, technological upgrades, more integration of ourselves and our lives to our phones, but besides that, is the pop culture we consume any different?

I can look back at 2011 and say "my phone back then was quite different" but the movies that were showing are sort of the type of movies that still get released.

Artists from then like Justin Bieber, Lady Gaga and Drake are still best selling artists.

Kids still dress in Nike, want Jordans, want the newest phone. No difference to kids 15 years ago.

So if things haven't changed in a decade, will things change in another decade?

Or have we plateued?