Life is Older than Earth Itself - Moore’s Law

As life has evolved, its complexity has increased exponentially, just like 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, 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 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.

On the semilog 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]

Read More via Daily Galaxy via MIT Technology Review

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    This could lend some credibility to the Panspermia Hypothesis, although evolution might not always follow Moore’s Law.
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