In the early 21st century, wearable AI devices became the rave, and the world was handed over to a network of awesomely intelligent computers called AHNN.ahnn_ebook_2d

(The acronym is quite rather irrelevant unless you buy the book.)

Mankind became very incomparably irrepressibly near hysterically smart.

All worldly problems quickly went away. Probably to someplace rather unworldly.

Now, in the 31st century, or 9th, depending on who you talk to, AHNN has pretty much had it with running the world and would like to give it back.