Platforms seduce their users into performing the unpaid work of content creation—uploading the texts, photographs, videos, and music that are the raw material of the digital world—while mining their metadata to create new markets for corporate and military surveillance. “Many of the other platforms are quite devious,” she said. “We don’t really know whether your face is being used to train facial-recognition algorithms or something like that.” In the digital economy, free labor tenders a self-replenishing vein of gold for capital’s pickaxe.