OT: I'm not really sure what the author meant by

> Graphics Processing Units, or GPUs, are the hottest mathematical co-processor since the FM synthesis chips that shaped the sounds of the 1990s

since FM was more of an 80s thing. Even their linked comment says

> Throughout the 90s FM was old-hat. Nobody wanted to hear those woody clangy sounds of the 80s anymore.

FM synthesis has kept being a thing ever since in specific applications but the zeitgeist of the 90s (and its modern postmodern retreads like vaporwave) is arguably digital sampling.