{"slug":"nogo-n06","verification":{"valid":false,"broken_at":0,"reason":"prev mismatch"},"count":4,"sources":[{"type":"review","url":"","title":"Brandon Carter (1974) — Anthropic principle in cosmology","quote":"Carter saw this in 1974. He named it. Bayes' theorem makes it formal. P(constants|observers) clusters on life-permitting values regardless of P(constants).","summary":"Coined the anthropic principle; proved observership filters the sample so large number coincidences are conditional probabilities."},{"type":"book","url":"","title":"John Barrow & Frank Tipler (1986) — The Anthropic Cosmological Principle","quote":"John Barrow & Frank Tipler (1986) wrote The Anthropic Cosmological Principle. 700 pages of evidence. They showed the constants sit in narrow ranges. They also showed this observation is inevitable given observers.","summary":"700-page work cataloging evidence that physical constants sit in narrow life-permitting ranges and that this observation is inevitable given observers."},{"type":"book","url":"","title":"Martin Rees (1999) — Just Six Numbers","quote":"Martin Rees (1999) cataloged six numbers in Just Six Numbers. The strength of gravity. The fine-structure constant. The ratio of dark to ordinary matter. Each sits in a razor-thin band.","summary":"Cataloged six fundamental constants whose razor-thin life-permitting bands look improbable but are inevitable under anthropic filtering."},{"type":"article","url":"","title":"John Wheeler (1977) — Participatory universe","quote":"John Wheeler (1977) proposed the participatory universe. Observers retroactively shape reality. The act of observation collapses possibility into fact.","summary":"Proposed the participatory universe: observers retroactively shape reality by collapsing possibility into fact."}]}