Random topic that came into my head simply by seeing the title of a video on YouTube (but didn't click on at the time as I was concentrating on other stuff). I feel like most of the previous decades from at least the 1910s to the 2000s have a certain "look/aesthetic" to them that people can identify. For example the 70s had disco music and a certain type of decor style that I admit I'm not sure what the name of it is, the 80s had "big hair, big clothes, and neon lights," the 90s was the "grunge" era, and the 00s was the era of the "Y2K" aesthetic, where wider mainstream acceptance of the internet and such lead to things like those computers with "sleek" looks and lots of bright primary colors, but with still some of the edge from the 90s grunge era carrying over.
But what defined the 2010s in terms of an "aesthetic"? Because yeah to be honest… I have no clue.