Reddit mentions of Introducing Postmodernism

Vaporwave mixes up 80s and 90s design elements, in a nostalgic way for an incoherent era. You can place some of them directly - like Outrun is inspired by, well OutRun the 1986 game. Early 3DCG will play a role. But certain design elements seem newer - witness the 1995 edition of Postmodernism for Beginners, which could totally be vaporwave if only it was tone mapped to look like a 90s Taco Bell. The 1992 Jazz Cup is another popular influence. This can be tied back to the 80s via CGA Graphics. You'll also see a Japanese style of text rendering.. This is possibly a throwback to Western ports of Japanese games?

Then there are full projects like Windows 93 where each element is its own memory, but is rooted in 90s computing as a whole.