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Fewer Than 10 ET Civilizations In Our Galaxy?

Al writes "The Fermi Paradox focuses on the existence of advanced civilizations elsewhere in the galaxy. If these civilizations are out there — and many analyses suggest the galaxy should be teeming with life — why haven't we seen them? Carlos Cotta and Álvaro Morales from the University of Malaga in Spain investigate another angle by considering the speed at which a sufficiently advanced civilization could colonize the galaxy. Various analyses suggest that using spacecraft that travel at a tenth of the speed of light, the colonization wavefront could take some 50 million years to sweep the galaxy. Others have calculated that it may be closer to 13 billion years, which may explain ET's absence. Cotta and Morales study how automated probes sent ahead of the colonization could explore the galaxy. If these probes left evidence of a visit that lasts for 100 million years, then there can be no more than about 10 civilizations out there."

18 of 642 comments (clear)

  1. Hello earthlings by Anonymous Coward · · Score: -1, Troll

    Take me to your dealer!

    1. Re:Hello earthlings by Philip+K+Dickhead · · Score: -1, Troll

      Take me to your dealer!

      You mean to say, Aliens haven't contacted us from space, because... they're dyslexic!!!

      Boy. I already have a hard time with "Gort, Klaatu barada nikto". Now, if I read you correctly and I think I do, I have it wrong, and it's actually harder to say!

      How will we stop the Saucermen's invincible robot cops from busting the planet down to a molten core?

      I'm just glad that "Spaa Fonn" and "Squa Tront" have passed from regular usage... Who KNOWS how those are really written and pronounced?

      --
      "Speaking the Truth in times of universal deceit is a revolutionary act." -- George Orwell
    2. Re:Hello earthlings by cabjf · · Score: -1, Troll

      Or maybe they're just looking for a good deal on a car.

    3. Re:Hello earthlings by HalifaxRage · · Score: 0, Troll

      You should know the universal greeting as actually Bah Weep Graaagnah Wheep Ni Ni Bong

      --
      bomb the us up set someone
    4. Re:Hello earthlings by HalifaxRage · · Score: 0, Troll

      We prefer the term Earthicans

      --
      bomb the us up set someone
    5. Re:Hello earthlings by tugboat0902 · · Score: 0, Troll
    6. Re:Hello earthlings by Mattcelt · · Score: -1, Troll

      Wait, that's the sound my old modem used to...

      ...ooooooh, gotcha.

  2. Re:What if... by Anonymous Coward · · Score: -1, Troll

    from what I hear, you also did a lot of "pud pulling", "butt-fucking", and "ass-to-mouth" with your friends.

  3. Re:There is no god by larry+bagina · · Score: 1, Troll

    in slashdot geek compound, one person's asshole is another person's cock socket!

    --
    Do you even lift?

    These aren't the 'roids you're looking for.

  4. Stallman sends out probes... by Anonymous Coward · · Score: -1, Troll

    ...to search the galaxy for advanced alien technology. Then he re-implements the same innovations in fresh source code, slaps copyright on it and tries to undercut the aliens. But his version is too hard to use and full of childish geek-elitist dogma, so everyone ignores it and Stallman gets really cross and cries into his beard about "free as in freedom" and other such mumbo-jumbo.

    Capcha: aptness

  5. Civilizations? by Philip+K+Dickhead · · Score: -1, Troll

    Based on my local sample, I'd estimate there to be less than ONE.

    Culture? That's for bacteria. Civilization? Maybe in the invisible, Elf-Kingdom in the clouds. :-)

    I've yet to witness any signs here on Earth!

    Now, excuse me. My Unicorn says it's time for Mr. Ed.

    --
    "Speaking the Truth in times of universal deceit is a revolutionary act." -- George Orwell
  6. Re:ever since moo by Anonymous Coward · · Score: -1, Troll

    Napoleon, like anyone can even know that.

  7. Re:Too Many Free Variables by King+InuYasha · · Score: -1, Troll

    But that assumes that we have the correct information for the "big bang" theory. The universe could have started far earlier, and we wouldn't really know. It's only a theory, not fact.

  8. Re:Synchronicity ! by Swizec · · Score: 0, Troll

    This patently false: not only is space unfathomably vast, but so is _TIME_. A civilization could have been born, grown, flurished and _died_ right next door 1 million years ago and we would _never_ know about it.

    No need even to go next door, could've happened right here on earth. I still find it hard to believe that something such as dinosaurs, which we know occupied most of the planet, weren't some sort of civilised life. By now all anthropologic data about their civilisation would be lost anyway, we can hardly find the Mayan pyramids and that was only a few thousand years ago.

  9. Re:Too Many Free Variables by King+InuYasha · · Score: -1, Troll

    A theory is something that has been mathematically proven. But any theory done relies on assumptions that we make, so it is still possible to be wrong.

  10. Re:Too Many Free Variables by ari_j · · Score: -1, Troll

    Well, we do have a lot of different species for just one planet. Asians, bears, ducks, Jews, deer, and Hispanics, all trying to live together? It doesn't make any sense unless it's for someone's amusement.

  11. Re:Too Many Free Variables by King+InuYasha · · Score: 0, Troll

    It's still an idea. Anyway, it still doesn't preclude that aliens could have technology that manipulates time or space even if we don't. And additionally, its only talking about our galaxy, not the whole universe.

  12. Re:Too Many Free Variables by arminw · · Score: 0, Troll

    ...when Quetzalcoatl/Jesus/Osiris/Thoth/Viracocha get back here...

    Except that Jesus Christ is the only one in your list who is going to come back because he is not dead, but was resurrected.

    --
    All theory is gray