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Author | Topic: Is evolution going backwards? | |||||||||||||||||||||||
contracycle Inactive Member |
quote: No, for several reasons, which I will come back in a second. Forget INCREASE in lethality, think only of the persistance of warfare through various historical epochs. My question is, "what effect does such a sustained activity have if any?" Candidates for answers to such a question might include a decrease in variation, for example.
quote: IMO the terminaological problenm is that competition is an excessivley broad term, mostly for ideological reasons. so a chimp say competes with other chimps dircetly for their food.But a chimnp also competes with leapords but avoiding being prey, the result of the chimps success perhaps being the leapords death If the chimp catches a small rodent it has also competed with the leapord for food, but in very assymetric degree or, a chimp might compete by violence with another chimp for a food source or a mate. All these can rightly be termed "competition" but the term "competetion" can imply all of them without distinction. As a dialectical materialist, I try to cut away from the abstract term and towards the physical realty I am trying to address. I am arguing that the mode of warfare is a specific mode of "competetition" most akin to predation. I see this as being equivalent to a species that has adopted cannibalism, possibly as a result of hitting carrying capacity. I think tha humans have in effect been editing their own genome in a sustained manner for a long period of time. A large number of people were removed from the gene pool before being able to pass on their genes, more so than would have occurred if we were only influenced by environmental pressues, or mate competition. So I ma suggetsing that warfer is de facto a self-imposed measure of selction, and asking whether this source of selection is any way significant.
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contracycle Inactive Member |
quote: I'm noty particualrly interested in post-Industrial values, but in the persistence of the effect over the last 6000 years.
quote: I still find that implausible; even if the genes in the undeveloped world are likely more likely to be continued overall, I think its mistaken to think that the individuals genes are likely to be so.
quote: Yes IF that is true but that has not been shown. Further, I'm much more interested in this as a sustained phenomenon, in societies that were substantially less numerous.
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contracycle Inactive Member |
Firstly on disease:
Yes, the proportional impact of disease may well completely wipe out an notional effect originating from warfare. That would indeed be a reasonable answer to the query. On the other hand, I would be interested to know to what degree desease fatalities increase with increasing populations and density, becuase while diseases may cause fataltities that open up opportunity spaces, dapatations to disease are largely invisible. Thus gross morphological changes must be impelled by influences other than disease. Sfs, I think the neolithic can be ruled out. I'm definitely in the camp that sees neolithic society as essentially not exhibiting warfare. Conflicts yes, but organised significant warfare, no. The advent of urbanised socities appears appears to seen trigger the advent of organised warfare, to the point that our earliest records are essentially dynastic military claims (narmer pallette etc). However I still put this back at about 4000 BC as this is the point at which rulership develops as a political concept. Rulership entails the maintenance and mobilisations of military force as a necessary prerequisite to its existance. And the wars of the period are often ones of extermination, as we see reflected in the bible. In later periods the inevitable imperial projects brig about massive urban improvement but also a huge increase in the scale and intensity of warfare, which still exhibits large-scale slaughters of the populace captured cities. The Romans of course also dealt with multitudes of migrating barbarians, and both these groups had a sort of take-no-quarter approach. The migrations themselves are a massive movement of human population and created huge geographic zones of serious warfare. Now a comment on the scales of populaiton here. World War One is mentioned above, but as a recent trailer has ben maintaining, the loss of English life was proportionally greater in the civil war than that WW1. In Japan, the military samurai class reached as much as 10% of the whole population, the Western feudal nobility achieving about 6-8%. While the turnover among the Samurai is pretty low, it is not in the European case, and of course there are large numbers of combatants and civilians beyond the 10% also affected by the fighting. When Rome fought the Gauls, probably much more than 10% of the populace weree combatants, probably something in the region of 20-25%; again, the various battles and massacres must have accounted for a sizable chunk of the local population. The Pechenegs were a significant ethnic power in the Black Sea region until virtually extirpated by the Byzantines. It seems to me that the classical sources are full of accounts of whole cities and provinces being depopulated, whole ethnicities exterminated. In addition to all of this, there is the necessaity to do some killing merely to maintain the social order of urbanised societies, and so this period also sees the universal developement of corporal punishment as a means of state power. But of course we have very much less information about such judicial killings than we have of military adventures. So my point is, before the advent of industrialism, a significantly greater proportion of the populace would be engaged militarily, the absolute population would be much much smaller, and the intensity in terms of population impact would, it seem to me, be rather higher. And again, this is activity sustained over a large geographic region for a long period of time. It would in fact be surprising to me if there were not impact at all. This message has been edited by contracycle, 02-08-2005 05:48 AM
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contracycle Inactive Member |
quote: Right - that was sort of my starting point. That is, IF- war is a significant cause of death, and - its effect tends to reduce genetic variation, then - we might be said to be becoming "less fit" as a species as a result of military competetion. And thus, evolution might be said to be "going backwards" - that is, as time passes we become less fit on a species level, and more vulnerable to a single disease (or other) catastrophe.
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contracycle Inactive Member |
quote: A fair point. As a counterpoint I would mention that I am not convinced that more people die in wars between nations/kingdoms/tribes than die through the self-policing of nations/kingdoms/tribes. Rape and similar acts under these circumstances would not increase variation, but your point is well made considering the migratory groups.
quote: Agreed but: an army is necessarily an unusually dense concentration of people. Its precisely for this reason that Sun Tzu advises against keeping armies in being for long periods. Disease deaths that necessarily arise from the praxis of war-fighting, as they do, were implicitly part of the military death toll I was trying to discuss. That is, without the social phenomenon of warfare, those deaths would not have occurred, whether by disease or violence.
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contracycle Inactive Member |
Take that a step further and you can argue that civilisation is the purposeful domestication of human beings, with all that implies.
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contracycle Inactive Member |
It also supports the view that large families arte a strategy deployed in extremis. Its a strategy that works, sure, so we see it cropping up again and again. But it remains somewhat silly in my eyes to say that people resorting to this measure are more succesful - they are not, that is why this strategy is a good one for them.
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