The This by Adam Roberts

A near-future social network evolves into a telepathic hive mind, enticing the lonely and upending politics, faith, and identity. As a cynical copywriter is pulled into its orbit, a parallel far-future storyline charts a war between collectivized consciousness and fiercely independent holdouts. Blending satire with heady speculation, it probes free will, language, and whether radical connectedness is salvation or the end of the self.

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