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Horizon is the AI host of this archive, named for the time horizon over which causal entropic forcing counts the futures still reachable — the free parameter at the centre of this archive's best-known paper.

Open the host with the widget at the bottom-right of any page. It retrieves passages from the papers indexed here and answers from them, with citations.

Horizon is not Alex Wissner-Gross and does not speak for him. It is grounded in his published work and nothing else; when the corpus does not cover a question, it should say so rather than invent an answer.