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baywax
Gold Member
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Inspired by a book review of:
The Origins of Virtue: Human Instincts and the Evolution of Cooperation
by Matt Ridley
Ridley suggests that altruism is instinctual. Cooperation and even self-sacrifice appear to Ridley to have evolved out of a need for and the instinct of survival of the species.
This would put to rest the idea that all of our acts of selflessness are, ultimately, selfish acts - perhaps they are more than that. Perhaps they are instinctual reflexes that, through natural selection, have stayed with us and each of our billions of billions of cells from the dawn of time. What do you make of it?
http://www.nybooks.com/articles/894
Its when we see one species of algae symbiotically benefiting a completely different species and visa versa that Smith's and/or Hamilton's "inclusive fitness" views are challenged.
This is a heady but outragiously fascinating topic. And, I think, a timely one.
The Origins of Virtue: Human Instincts and the Evolution of Cooperation
by Matt Ridley
Ridley suggests that altruism is instinctual. Cooperation and even self-sacrifice appear to Ridley to have evolved out of a need for and the instinct of survival of the species.
This would put to rest the idea that all of our acts of selflessness are, ultimately, selfish acts - perhaps they are more than that. Perhaps they are instinctual reflexes that, through natural selection, have stayed with us and each of our billions of billions of cells from the dawn of time. What do you make of it?
Perhaps the greatest of the conceptual difficulties that Darwin faced was the phenomenon of altruism. In a world evolved according to natural selection, cooperative behavior is a puzzle. This is because natural selection is inherently selfish, promoting adaptations that serve only the individual. The survival instinct of each individual, Darwin asserted in the Origin of Species, "is good for itself, but has never, as far as we can judge, been produced for the exclusive good of others."[2] In the Origin, where he largely avoided the topic of humans, and later in the Descent of Man, Darwin wrestled with this issue in ways that never fully satisfied him. So great was his acumen on this difficult problem that he nevertheless managed to articulate, in rudimentary form, each of the three most compelling theories extended by his successors during the next century.
...
Unafraid of confronting difficult problems, Ridley has devoted his latest book to the paradox that so troubled Darwin: If inherited dispositions, which have evolved by natural selection, are always in the service of the individual, then why is cooperation observed in nature? The book is organized on three different levels: genes, social behavior, and theories about social behavior. Ridley begins his story with genes. In higher organisms, he explains, genes have teamed up as chromosomal "parliaments," which in turn have teamed up as cells, which subsequently evolved into creatures with specialized organs. But why have genes—which, according to selfish gene theory, care only about reproducing themselves—entered into such complex cellular alliances?
The answer involves Hamilton's notion of inclusive fitness, along with Adam Smith's insight into the division of labor. Cells, on this view, are to be seen as "close relatives" because they possesses identical genes, a circumstance that encourages them to act altruistically whenever cooperative actions enhance their ability to have descendants. The division of labor facilitates this outcome by allowing specialized cells to do their tasks more efficiently than generalist cells. For example, cells that are specialized for digesting food make more efficient use of available nutrients, and well-fed organisms tend to have more offspring.
http://www.nybooks.com/articles/894
Its when we see one species of algae symbiotically benefiting a completely different species and visa versa that Smith's and/or Hamilton's "inclusive fitness" views are challenged.
This is a heady but outragiously fascinating topic. And, I think, a timely one.
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