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"Life is Older than Earth Itself" -- Moore's Law

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  • derhexerus
    URL to an interesting spec piece in the Daily Galaxy http://tinyurl.com/lloek6u In a billion years life evolve from worms to mammals, so a billion years in the
    Message 1 of 1 , Aug 23 4:53 PM
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      URL to an interesting spec piece in the Daily Galaxy
      http://tinyurl.com/lloek6u

      In a billion years life evolve from worms to mammals, so a billion years in
      the future life will as far beyond us as we are beyond worms.

      Chris

      (Madness takes its toll. Please have exact change)


      "
      As life has evolved, its complexity has increased exponentially, just like
      _Moore’s law_ (http://en.wikipedia.org/wiki/Moore's_law) which states that
      the number of transistors on an integrated circuit doubles approximately
      every two years. Geneticists, Alexei Sharov at the National Institute on
      Ageing in Baltimore and Richard Gordon at the Gulf Specimen Marine Laboratory
      in Florida, have extrapolated this trend backwards and found that by the
      measure of Moore's Law, life is older than the Earth itself.
      The team takes Moore's Law back to zero complexity and the _origin of
      life_ (http://en.wikipedia.org/wiki/Abiogenesis) , by measuring the complexity
      of life and the rate at which it has increased from prokaryotes to
      eukaryotes to more complex creatures such as worms, fish, amphibians and eventually
      mammals. The result is an exponential increase identical to that behind
      Moore’s Law with the doubling time, however, expanding to 376 million years
      rather than every two years.
      The application of Linear regression of genetic complexity on a log scale
      extrapolated back to just one base pair suggests the time of the origin of
      life 9.7 billion years ago. This cosmic time scale for the _evolution of
      life_ (http://en.wikipedia.org/wiki/Evolution) has important consequences:
      life took ca. 5 billion years to reach the complexity of bacteria; the
      environments in which life originated and evolved to the prokaryote stage may have
      been quite different from those envisaged on Earth. Therefore they suggest
      that if life takes 10 billion years to evolve to the level of complexity
      associated with homo sapiens, then we may be among the first, if not the
      first, intelligent civilisation in the Milky Way, negating Drakes Equation.
      (http://www.dailygalaxy.com/.a/6a00d8341bf7f753ef019104ed8588970c-pi)

      On the _semilog plot_ (http://en.wikipedia.org/wiki/Semi-log_plot) above ,
      the complexity of organisms, as measured by the length of functional
      non-redundant DNA per genome counted by nucleotide base pairs (bp), increases
      linearly with time (Sharov, 2012). Time is counted backwards in billions of
      years before the present (time 0). Credit: arXiv:1304.3381 [physics.gen-ph]
      Additionally they suggest that the evolution of advanced organisms has
      accelerated via development of additional information-processing systems:
      epigenetic memory, primitive mind, multicellular brain, language, books,
      computers, and Internet. As a result the doubling time of complexity has reached
      about every 20 years.
      Sharov and Gordon also point out that astronomers believe that our Solar
      Nebula formed from the remnants of an earlier star, suggesting that life from
      this period might be preserved in the original gas, dust and ice clouds.
      In a form of Cosmic pansermia, _life on Earth_
      (http://en.wikipedia.org/wiki/Life) may be a continuation of a process that began many billions of
      years before the formation of our Solar System."


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