by gg3 » Sun 06 Aug 2006, 01:56:28
The best available answer, compiled from all of the relevant branches of science is:
All measurable human characteristics can be described by a "normal curve" (bell-shaped curve) for the general population of humans. The obvious ones are height, weight, general intelligence, and general strength. But this also applies to emotional characteristics (personality), and to behavioral characteristics (altrusim/selfishness, etc.)
You can pick any spot on the normal curve and say it represents the whole, but that's unscientific at best and self-reinforcing for better or worse.
Genetics establish outer limits of potential. Enculturation establishes a set of limits for any given society, that is within the limits of genetics (that is, cultures select for subsets of the genetic potential). Individual life-experience selects for another subset of an individual's genetic potential, which is usually within but occasionally outside of, the limits established by the individual's culture. The pattern-seeking and synthetic (imaginative) capabilities of the human brain enable individuals to create what-if scenarios that may also affect their behavior. The quantum indeterminacy present in the substructures of the neurons in the brain provides the physical basis for free will.
Free will plus the synthetic capabilities of the brain provide a basis for individuals to choose to break out of the limits of their enculturation.
There may or may not be such a thing as a transcendent soul, but if there is, its nature is filtered through the physical structures of the brain. Thus, operationally, it could be considered as similar in its effects to the combined output of the pattern-seeking, synthetic, and free-will components of the individual mind.
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The phrase "survival of the fittest," is, strictly speaking, less than scientific because it fails to operationalize the independent variable: "fitness." Fitness for what set of conditions or what goal-state? Unspecified "fitness" is teleology-by-abdication: it holds that whatever outcome occurred was the "correct" one, and thus is unfalsifyable. Therefore much better to use the term "natural selection," which refers only to a process: nature selects for any given set of conditions.
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Human societies are more aptly described as social ecosystems. Human social ecosystems show a number of dynamics that are similar to those existing in ecosystems sans humans: cooperation (sharing resources to achieve a shared goal), competition (vying for achievement of a goal within the limits of an agreed rule-set), symbiosis (sharing unlike resources to achieve unlike goals, i.e. mutual benefit such as trade), parasitism (taking from another person to benefit oneself, without providing benefit in return), and predation (taking from another person in such a manner as causes the death or disability of the other).
Cooperation is inherently conservative: it conserves gains that have been made, and resources needed to make further gains. Competition is inherently progressive: it stretches boundaries and seeks new solutions in order to succeed. The ability of a human social ecosystem to survive over a long term depends upon its ability to successfully prevent or otherwise limit parasitic and predatory behaviors among its members (this is where systems of law and other rule-sets come into play).
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Social behaviors are not a veneer covering up instinctive barbarity, any more than barbaric behaviors are a veneer covering up intrinsic vulnerability.
Organized societies are steps uphill on the entropy gradient (i.e. away from entropy) toward increased complexity (syntropy or negentropy). The further up the entropy gradient a given society manages to climb, the more it becomes vulnerable to attack. Thus comes the need for organized defense.
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The core characteristics of civilization are: a) increase in knowledge over time, and b) decrease in violence over time. From these we can derive the rest of the list including human and civil rights, lawfulness and order, liberty and equality under law, freedom of person and of enterprise, and the responsibilities that accompany the various rights and freedoms.
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"...life, liberty, and the pursuit of happiness..." are in fact hardwired into the human organism: we are indeed endowed with these as our nature and thus as our right, by our Creator (God and/or Nature, as you prefer; I'll make the case from Nature for the present purposes):
Life: All living organisms maintain stability of their biological homeostasis, and resist forces that attempt to destabilize it to the degree that would kill them.
Liberty: Free will is built into the human brain at the level of quantum indeterminacy in substructures in the neurons. It is possible that other organisms with sufficiently complex brains also have free will to some degree; as of yet we do not know the threshold of complexity needed for this to occur.
Pursuit of happiness: This is an outgrowth of the homeostatic nature of living organisms. Disturbance of homeostasis is perceived as pain or as an aversive stimulus to which an organism will respond with attempts to re-establish homeostasis or through attempts to fight or flee. Pain and pleasure are hard-wired into organisms and their effects can be observed in avoidance and approach behaviors respectively.
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More later, gotta' go do laundry...