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Outline

From Earth to the Universe: Life, Intelligence, and Evolution

2017, Biological Theory

https://doi.org/10.1007/S13752-017-0266-6

Abstract

construction of the field, as it were. This article is more of a think piece than a research report, raising issues that may be of interest to readers of this thematic issue. Because I will be discussing "dogma" throughout this piece, some explanation of what I mean by the term is warranted. The Online Etymological Dictionary 2 says the English word "dogma" derives from the Latin dogma, meaning "philosophical tenet," and from the Greek dogma, meaning "opinion, tenet," literally "that which one thinks is true." I generally think of "dogma" as a belief or set of beliefs that an adherent is not willing to question, explore, evaluate, or debate. Beliefs are not bad things in and of themselves. It is often necessary to embrace and articulate a certain set of beliefs-presuppositions, axiomatic premises, or assumptions, if you will (depending on whether you're a philosopher, an astrophysicist, or a cultural studies scholar)-in order to proceed with a line of inquiry. But as the philosopher C.S. Peirce (1955[1940], p. 10) observed, an inquirer must be willing to question, or test, those presuppositions. "Belief does not make us act at once, but puts us into such a condition that we shall behave in some certain way, when the occasion arises. Doubt has not the least such active effect, but stimulates us to inquiry until it is destroyed." According to the Oxford Dictionary of Philosophy, 3 "dogma" is "in general, a belief held unquestioningly and with undefended certainty. In the Christian Church, [it is] a belief communicated by divine revelation." Abstract While the scientific discourse on astrobiology-the study of the origin, evolution, and distribution of life in the universe-leans toward optimism about the possibility of extraterrestrial life, optimistic thinking is tempered by the limits of evidence and observations gathered thus far. Most astrobiologists assume that "first contact" with extraterrestrial life, if it is ever to occur, will likely be the discovery of microbial life elsewhere in our solar system. But in popular culture, "first contact" tends to be characterized as contact with extraterrestrial intelligence. This article will touch on theory and research relating to the origins and evolution of life and intelligence on Earth and speculation about extraterrestrial life and intelligence.

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