This may not be exactly relevant, but the diagram here reminds me of 
> the "map of science collaboration" 
> described here:
> 
> http://wbpaley.com/brad/
> 
> There was another rather more attractive diagram of a similar nature, 
> but I seem to have lost the link. But a Google search turns up one!:
> A map of science
> 
> http://www.wired.com/wiredscience/2009/03/mapofscience/
> 
> The brain map also has resemblance to diagrams of 
> the tree of evolution of life:
> 
> http://tolweb.org/tree/
> 
> http://en.wikipedia.org/wiki/File:TreeActinobacteria.svg
> 
> Though of course the visual resemblance doesn't necessarily 
> imply anything more profound than a similar graphic method.-Human social interactions are typically modeled in such diagrams--these similarities don't strike me as odd at all. Thanks for those links , they were all smashing reads!

--
\"Why is it, Master, that ascetics fight with ascetics?\"

\"It is, brahmin, because of attachment to views, adherence to views, fixation on views, addiction to views, obsession with views, holding firmly to views that ascetics fight with ascetics.\"