Asymmetry in Active SETI: A case for transmissions from Earth |
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| Authors: | Douglas A Vakoch |
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| Institution: | 1. Department of Clinical Psychology, California Institute of Integral Studies, 1453 Mission Street, San Francisco, CA 94103, USA;2. Center for SETI Research, SETI Institute, 515 North Whisman Road, Mountain View, CA 94043, USA;1. Instituto Argentino de Oceanografía, CONICET, Bahía Blanca, Argentina;2. Departamento de Física, Universidad Nacional de Sur and Instituto Argentino de Oceanografia, CONICET, Bahía Blanca, Argentina;3. Departamento de Oceanografía, Servicio de Hidrografía Naval Argentina, Departamento de Ciencias de las Atmosferas y los Océanos, Universidad de Buenos Aires, Instituto Franco-Argentino Sobre Estudios de Clima y sus Impactos and CONICET, Buenos Aires, Argentina;1. Ocean Acidification Research Center, School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, AK, USA;2. National Oceanic and Atmospheric Administration, Pacific Marine Environmental Laboratory, Seattle, WA, USA;1. National Key Laboratory of Aerospace Flight Dynamics, Northwestern Polytechnical University (NWPU), Xi''an, PR China;2. School of Astronautics, NWPU, Xi''an, PR China;3. Department of Mechanical and Manufacturing Engineering, Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada;1. School of Mechanical Engineering, Changzhou University, Changzhou 213164, PR China;2. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;1. Grupo de Oceanografia Tropical, Inst. de Física, Universidade Federal da Bahia, Travessa Barão de Jeremoabo, s/n, 40170-280 Salvador, Bahia, Brazil;2. Aquatic Sciences, South Australia Research and Development Institute, Adelaide, Australia;3. Instituto Oceanográfico da Universidade de São Paulo, São Paulo, Brazil;1. CNES, France;2. DLR, Germany;3. ATOS for CNES, France;4. ASI, Italy;5. IAS, Paris;6. MPS, Göttingen, Germany |
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| Abstract: | The Search for Extraterrestrial Intelligence (SETI) typically presupposes contact with extraterrestrial civilizations much longer lived than humanity. Many have argued that given humanity's “youth,” the burden of transmitting should be placed on the extraterrestrial civilizations, which presumably possess more advanced technologies. These assumptions have contributed to the current emphasis on Passive SETI. Complementing this existing stress on Passive SETI with an additional commitment to Active SETI, in which humankind transmits messages to other civilizations, would have several advantages, including (1) addressing the reality that regardless of whether older civilizations should be transmitting, they may not be transmitting; (2) placing the burden of decoding and interpreting messages on advanced extraterrestrials, which may facilitate mutual comprehension; and (3) signaling a move toward an intergenerational model of science with a long-term vision for benefiting other civilizations as well as future generations of humans. Technological requirements for Active SETI are considered, and a case is made for Active SETI as a means for experimentally testing variants of the Zoo Hypothesis. Recommendations are provided for sustaining Passive and Active SETI and the communities that conduct these searches. |
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