[physics/0308078] Brane Worlds, the Subanthropic Principle and the Undetectability Conjecture

Physics, abstract

From: Beatriz Gato-Rivera [view email]
Date (v1): Tue, 19 Aug 2003 13:23:43 GMT   (16kb)
Date (revised v2): Wed, 20 Aug 2003 12:47:47 GMT   (15kb)
Date (revised v3): Tue, 27 Jan 2004 08:43:03 GMT   (15kb)
Date (revised v4): Thu, 26 Aug 2004 15:39:49 GMT   (35kb)

Brane Worlds, the Subanthropic Principle and the Undetectability Conjecture

Authors: Beatriz Gato-Rivera
Comments: Dedicated to Giordano Bruno, Latex, 15 pages. Four new footnotes, one last paragraph in the Appendix and several minor improvements in the redaction. Spanish version also available
Subj-class: Popular Physics; Space Physics
In the recent article `Conflict between anthropic reasoning and observation'(gr-qc/0303070) Ken D. Olum, using some inflation-based ideas and the anthropic premise that we should be typical among all intelligent observers in the Universe, arrives at the puzzling conclusion that `we should find ourselves in a large civilization (of galactic size) where most observers should be, while in fact we do not'. In this note we discuss the intriguing possibility whether we could be in fact immersed in a large civilization without being aware of it. Our conclusion is that this possibility cannot be ruled out provided two conditions are met, that we call the Subanthropic Principle and the Undetectability Conjecture.
En el reciente articulo `Conflicto entre razonamiento antropico y observacion' Ken D. Olum, basandose en algunas ideas sobre la inflacion cosmologica y en la premisa antropica de que tenemos que ser tipicos entre los observadores inteligentes del Universo, llega a la sorprendente conclusion de que `deberiamos encontrarnos en una civilizacion grande (de tamanio galactico) al igual que la mayoria de los observadores, mientras que de hecho no lo estamos'. En este articulo discutimos la posibilidad de que nuestra civilizacion este de hecho inmersa en una civilizacion grande, sin que seamos conscientes de ello. Nuestra conclusion es que esta posibilidad no puede descartarse si se cumplen dos condiciones, que llamamos el Principio Subantropico y la Conjetura de Indetectabilidad.

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