From: J. Maynard Gelinas <j.maynard.gelinas.nul> Date: Thu, 8 Mar 2012 04:49:06 +0800 Archived: Thu, 08 Mar 2012 06:21:20 -0500 Subject: Re: Manipulating A Target Host's Fitness Function >From: J. Maynard Gelinas <j.maynard.gelinas.nul> >To: UFO UpDates - Toronto <post.nul> >Date: Wed, 7 Mar 2012 13:08:38 +0800 >Subject: Manipulating A Target Host's Fitness Function >Speculative: On Indirectly Manipulating a Target Host's Fitness >Function In A Static Environment >This is a followup to two prior posts: >Sampling Earth's Biodiversity: >http://www.ufoupdateslist.com/2012/feb/m27-005.shtml >Biosphere Computational Modeling: >http://www.ufoupdateslist.com/2012/mar/m01-007.shtml >In both posts, I suggested that useful solutions to complex >morphological problems from the molecular to the macro scale >could be computationally modeled using Genetic Algorithms with >the Earth's biosphere as the simulation habitat. By manipulating >a target host's fitness function, a range of potential solutions >to varying morphological and functional problems could thus be >derived over time. This is then extrapolated to a speculative >'Extraterrestrial Intent' for repeated visitations observed and >recorded since antiquity. However, one issue not deeply explored >is just how a 'fitness function' might be manipulated to >generate a given selection pressure since the Earth's biosphere >is assumed to be static and immutable. This post will suggest a <snip> Just a quick addendum on the potential use of engineered parasites within an environment to manipulate a target host. It's already known that certain parasites can cause behavioral changes in an infected host. For example, Toxoplasmosis Gondi, a parasite that infects mice, cats, and even humans, will cause a behavioral shift in mice that reduces inhibition and fear, leading the infected mouse to a cat as part of its life cycle. It may well affect the behavior of infected humans as well: http://www.economist.com/node/16271339 Viral parasites, such as a retrovirus, can impart nongerm-line genes into a host. HIV is the most commonly known of these. Also, outside of parasites, note that shifting population sizes of a secondary interactors to a primary target host may be an easier approach than directly modifying the genomes of organisms nearby on the target's ecological web. M Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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