Anansi

The aliens discovered the simplest way to fight the humans was not to fight at all. They gave them windows into each others' lives: images, videos, commentary. They laid bare the contradictions and disagreements underlying the simplest interaction. They connected humanity to itself and watched it crumble under the weight of competition, insecurity, and hopelessness. The humans had guns but guns could not defeat social media. By the time the global depressive episode was realized, it was too late for anyone to try (or really want) to stop it.