The document discusses the history and future of augmented reality and how information is shared in an augmented world. It traces the origins of augmented reality back to the 1960s with early innovators like Morton Heilig and Ivan Sutherland, and notes that the term "augmented reality" was coined by Tom Caudell in 1992. The document suggests that as augmented reality technologies like consumer eyewear become more common, it will change how information is shared, possibly through exclusive interfaces, shared hallucinations, or multiple perspectives.