Polkinghorne, The faith of a physicist, 192. Note: he dismisses John Wheeler’s idea of the "participatory" AP, namely that observers bring about their own existence, as "scientifically incredible." See John C. Polkinghorne, Science and Providence: God's Interaction with the World, 1st Shambhala ed. (Boston: Shambhala Publications, 1989), 24. and Polkinghorne, The faith of a physicist, 76. and refer to Barrow and Frank J. Tipler, The Anthropic Cosmological Principle, p. 22. See also Polkinghorne, Science and providence, 38-40.