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tsuomela : extraterrestrial   11

Benjamin Rosenbaum: Never trust an astronomer with a sinister goatee
"You know, nowadays I consider myself mostly kind of an eye-rolling jaded sophisticate as far as interstellar settlement goes. While I'm moderately bullish on humans making some interesting use of the rest of our own solar system someday -- God willing -- I scoff at FTL drives and galactic empires, and even managing a quick trip (by biological humans) to Proxima Centauri seems honestly like it's going to be a matter of several millennia from now at best.

I'm not really talking about engineering, here
sf  future  space  travel  life  extraterrestrial  exobiology  economics 
march 2011 by tsuomela
BBC News - Alien hunters 'should look for artificial intelligence'
Dr Shostak says that artificially intelligent alien life would be likely to migrate to places where both matter and energy - the only things he says would be of interest to the machines - would be in plentiful supply. That means the Seti hunt may need to focus its attentions near hot, young stars or even near the centres of galaxies.
astrobiology  astronomy  seti  extraterrestrial  intelligence  alien  artificial-intelligence 
august 2010 by tsuomela
Technology Review: Blogs: arXiv blog: The Fermi Paradox, Phase Changes and Intergalactic Colonisation
Bezsudnov and Snarskii even derive an inequality that a universe must satisfy to become civilised. This, they say, is analogous to the famous Drake equation which attempts to quantify the number of other contactable civilisations in the universe right now.
astrobiology  astronomy  extraterrestrial  intelligence  fermi-paradox  simulation  celluar-automata  model 
july 2010 by tsuomela
the physics arXiv blog » Blog Archive » Fermi’s paradox solved?
The so-called Fermi Paradox has haunted SETI researchers ever since. Not least because the famous Drake equation, which attempts put a figure on the number intelligent civilisations out there now, implies that if the number of intelligent civilisations capable of communication in our galaxy is greater than 1, then we should eventually hear from them.

That overlooks one small factor, says Reginald Smith from the Bouchet-Franklin Institute in Rochester, New York state. He says that there is a limit to how far a signal from ET can travel before it becomes too faint to hear. And when you factor that in, everything changes.
physics  astronomy  life  extraterrestrial  arxiv  radio 
february 2009 by tsuomela

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