first sorry for the length i usually try to keep them much shorter, but i had some ‘xplainin to do…
@Ria777 oh.my.god! i really fucked up on the rousseauian thing. i read rousseau and hobbes around the same time and so in my head i got their theories of human nature mixed up (they are opposites, rousseau believes communal qualities or “goodness” is inherent in humans while hobbes is the opposite—he is the one who was surrounded by wars and violence and thus believed humans to be inherently immoral and evil) so for the mix up i am very very sorry! my brain was just backwards! haha
but i think the hobbsian vs rousseauian claims about human nature prove thecompassionateheritic’s point. that people’s claims about human nature speak more to their own thoughts on humanity rather than an “objective” one.
this goes for scientists as well… scientist A and scientist B can have all the same facts in hand and still come up with completely different theories and conclusions.
as for the evolutions stuff… you totally proved my point… i am not mixed up about natural selection. natural selection depends on things like the exact moment in time and the environment.
cheetahs running fast is not a “natural selection” that is a characteristic of all cheetahs. and that is much too broad.
read the moth example given by wikipedia, it is in the opening paragraph of the article:
http://en.wikipedia.org/wiki/Natural_selection
the moth thing is a perfect example of what i mean by random. the environment at the time changed into something it had never been before and randomly the moths that happened to be darker survived. dark moths were no more “fit” than light moths, they just happened to have a small advantage over the other moth. if the environment changed again (i.e. less soot) there is no reason why the light moth would not make a comeback. because dark moths would no longer have the advantage if trees were not dark.
natural selection applies to minuscule adaptions. for example a heron bird who sticks its beak into crab holes to find food. we are talking a heron with a 4 cm wide beak vs. a bird with a 4.5 cm wide beak. point 5 centimeters is not exactly a noticeable change unless you study the bird the way evolutionary biologists do. (if crabs are smaller that year depending on the food supply then a smaller beak is better because it can fit into the smaller hole to get the crab out and eat it, so more small beaked birds will survive longer and have more opportunity to copulate. if crabs are bigger and dig larger holes the bird with the larger beak has the comparative advantage because the big strong crab is less likely to get away from a 4.5 cm beaked bird than a 4 cm beaked bird; though the small billed won’t die out immediately because plenty of them will still be able to defeat the crab even if it is slightly bigger than usual.
so when talking about evolution we are not talking about “cheetahs run fast because of natural selection, ” as you put it, they run fast because they are cheetahs…. and in my terms, we are not talking about “birds fly because of natural selection”... birds just fly because birds fly.
this is exactly what i mean about people who talk about darwin and have never read a single page of “On the Origin of Species”
i hope this answer was not too ramble-y. if there is anything i can do to clarify something please let me know