zankaon
Jun2-08, 02:16 AM
It's not a coincidence that the plasticity and adaptivity we call life evolved on a geological active planet. If there were no latter, then no liquid outer core, and no dynamo effect with protective magnetosphere, which shields us from the solar wind. Such unimpeded wind would erode away the atmosphere and then the oceans. The fault resides not with nature, but with our overwhelming successful agriculture, resulting in a hugh population. Nature's Maltusian ways will ensue if we are not more careful. A hugh population is more vulnerable to natural disasters. Urbanization and education are negative feedbacks on demographics. Such geological and biological evolution has been with us for a very long time.
http://en.wikipedia.org/wiki/Geologic_time_scale
It would be highly improbable for it to end soon. Once life takes hold on a geologically active planet (even perhaps for an ice covered rogue planet) http://en.wikipedia.org/wiki/Rogue_planet,
it would seem probable to be quite robust to perturbation.
http://en.wikipedia.org/wiki/Geologic_time_scale
It would be highly improbable for it to end soon. Once life takes hold on a geologically active planet (even perhaps for an ice covered rogue planet) http://en.wikipedia.org/wiki/Rogue_planet,
it would seem probable to be quite robust to perturbation.