Technologies of all kinds are also progressive rather than cyclic, as seen by Ford's first assembly line to today's robotics. I understand that a type of organic "machine" is being researched at this time.
Global populations could be said to be trending toward larger and larger numbers at an exponential rate. But should those numbers reach a tipping point in which our environment can no longer support the numbers, it is possible that a cyclic type response would occur to greatly reduce the population to a sustainable number.
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"You can't ignore politics, no matter how much you'd like to." Molly Ivins - 1944-2007
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