On October 21, 2045, Griff Tannen uploaded a virus to ThingMeme that displayed the word butthead on all devices around the world. The virus short circuited the Mr. Fusion network and led to explosions in the tiny nuclear reactors in all one hundred million of the units. As Doc rewrote that timeline by preventing the invention of the Mr. Fusion, it's unclear whether GriffTech and ThingMeme existed in the new timeline.