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The problem with this article was that it didn't really explain the author's definition of "human nature." I don't think that what we eat is part of human nature because we are omnivores and so can eat anything. Buying food in cans doesn't become part of human nature, no matter how long people do it. That's something learned from your parents and society. The only part of eating that is part of human nature is the need to do it. Since human nature involves all the basic, intrinsic needs and desires of people, I don't think it can be changed. So, Revkin is right in saying that because human nature can't be changed, technology should change instead.