Skip to main content

View Diary: Who can own the future? (262 comments)

Comment Preferences

  •  Maybe interstellar travel is too hard for (11+ / 0-)

    biologicals but this is unlikely to be true of machines. I remember reading that the descendants of a single Von Neumann self-replicating probe could visit every star in the galaxy in a few million years even at speeds far below that of light. We are not that far off from being able to build such a machine.

    The mystery remains. Even terribly conservative assumptions for the Drake equation point to several civilizations extant. In the billions of years available, not one has built a self-replicating interstellar probe?


    I refuse to believe corporations are people until Texas executes one.

    by Athenian on Sun Jul 14, 2013 at 06:41:33 AM PDT

    [ Parent ]

    •  Anyone else know is this is true? Interesting. n/t (1+ / 0-)
      Recommended by:
      •  Technical paper here (3+ / 0-)
        Recommended by:
        DrTerwilliker, caul, Odysseus


        Wiki discussion here

        It has been theorized that a self-replicating starship utilizing relatively conventional theoretical methods of interstellar travel (i.e., no exotic faster-than-light propulsion such as "warp drive", and speeds limited to an "average cruising speed" of 0.1c.) could spread throughout a galaxy the size of the Milky Way in as little as half a million years.[2]
        The figure I remembered was six million, this says as little as 500,000 years.


        I refuse to believe corporations are people until Texas executes one.

        by Athenian on Sun Jul 14, 2013 at 07:04:16 AM PDT

        [ Parent ]

        •  There was but it was too small to see (3+ / 0-)

          Life on other planets may be so small we didn't notice the probe.  Remember the old story of the man who noticed a tiny flying saucer the size of a hummingbird land in his back yard.  Tiny small men got out and was looking under rocks and leaves and such.  The man said - "Hey - what yall looking for?"  And one replied "little bitty women" and then they flew off.

          That's what I heard - might not be true.

    •  indeed we are far more likely to encounter the (3+ / 0-)
      Recommended by:
      VeggiElaine, rodentrancher, llywrch

      space alien's mechanical probes first, just as the space aliens are far more likely to encounter OUR mechanical probes (or our electromagnetic signals) than us.

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site