Mais sobre a possibilidade de vida extraterrestre inteligente

Mais artigos sobre a possibilidade de vida extraterrestre inteligente e civilizada (e sobre as razões que fazem com que, se existe, não dê sinais de vida).

• Centauri Dreams » Blog Archive » Rethinking Galactic Empire:

  "How much would an extraterrestrial civilization resemble our own? The question resonates because on the one hand, the signature of our activities is what we tend to translate into the SETI search. We look, for example, for the signs of civilizations that are like us but more advanced technologically, which means we apply human thinking and motivations to cultures that are by definition not human. This is natural enough, because we’re the only technological civilization we know about, but it leads to results that may mislead us and obscure the actual situation".

• Centauri Dreams » Blog Archive » First Contact Scenarios: How to Reply:

  "Assume we receive, at long last, a signal from the stars that is unmistakably an attempt to communicate. After long debate, we decide to respond, describing who we are as a species. Which of these statements, drawn from a class Lockwood teaches on the subject, offers the best ten-word summary of the human condition?"

• Open the Future: Pondering Fermi

  "The Fermi Paradox -- if there's other intelligent life in the galaxy, given how long the galaxy's been here, how come we haven't seen any indication of it? -- is an important puzzle for those of us who like to think ahead. Setting aside the mystical (we're all that was created by a higher being) and fundamentally unprovable (we're all living in a simulation), we're left with two unpalatable options: we're the first intelligent species to arise; or no civilization ever makes it long enough..."

• Centauri Dreams » Blog Archive » The ‘Great Filter’ Tackles Fermi:

  "Suppose for a moment that life really is rare in the universe. That when we are able to investigate the nearby stars in detail, we not only discover no civilizations but few living things of any kind. If all the elements for producing life are there, is there some kind of filter that prevents it from proceeding into advanced and intelligent stages that use artifacts, write poetry and build von Neumann probes to explore the stars? Nick Bostrom discusses the question in an article in Technology Review, with implications for our understanding of the past and future of civilization."