Ecosystems Redux
Thinking about the glial cells "tending" the neurons, you wonder how this came about. The glial cells are reacting to the excitation of the neurons. Is it "interesting" to them in some sense? It seems like a strategy of cooperation as opposed to competition would have evolutionary advantages. Is this all based on the stuff they are finding with bacterial communication (see for example this wired article -- seems like there was a more complete writeup in Scientific American, where they thought they had found the chemical that all cells would use to communicate). Yet another thing that we may have scientific understanding of soon.
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