You know, among those nifty features of BlogLines, there's the chance to clip posts for future use/review.
Today I was skimming through my quite long stack of clips, and found this post (in Italian) by Davide Bennato, about butterfly effect and social networks.
Davide Bennato
Studiando la crescita delle reti rispetto al tempo e le strategie dei co-autori di articoli scientifici, Kleimberg è giunto alla conclusione che internet stimola la diffusione di idee quando diventa lo strumento utilizzato da alcuni opinion leader per mantenersi in contatto con diversi gruppi sociali (più o meno influenti). Newsgroup, siti web, forum e - recentemente - blog, contribuiscono ad amplificare l'audience e la discussione di determinati argomenti.
Niente di nuovo. Già negli anni '60 un pioneristico lavoro del sociologo Stanley Milgram, dimostrò che nel mondo ogni persona è collegata alle altre da una media di circa sei persone diverse.
Now, the so called butterfly effect is one of the basis of the chaos theory and owes its name to an example made by Edward Lorenz in the first days of chaos studies: "the beating of a butterfly's wings in Brazil might set off a tornado in Texas months later".
As Davide quotes in his post, John Kleinber at AAAS (American Association for the Advancement of Science) in february provoked the audience asking "Can a single e-mail from Brazil set off a torrent of action in Texas?".
Kleinber is actually studying also how network grows over time, suggesting that, because of the small world phenomenon, counting the number of hops between people doesn't help. "It's better to look for people who have many different short paths connecting them, " he says. "This is an interesting open question with a lot of room for further research."
So, what I described a while ago in six slopes of separation about the importance of the quality (bandwidth) of a connection rather than just its path length is yet another point of view on this subject!
My curiosity now is: what happens as social networks grow bigger (and probably less deep), and thus worlds get smaller... will this enhance the instability of that torrent of actions?!
Maybe some of these papers on small-world and power-law / scale-free networks could help... :)
Even moreso, googling on the tracks of the small world meme, I discover that this article in New Scientist, describes a parallel between small-world network structure of neuron networks.
Small world networks key to memory
If you recall this sentence a few seconds from now, you can thank a simple network of neurons for the experience. [...]
The key, they say, is that the neurons form a "small world" network. Small-world networks are surprisingly common. Human social networks, for example, famously connect any two people on Earth - or any actor to Kevin Bacon - in six steps or less.
Now, my question is: if a mail in Brazil can set off a torrent of actions in Texas, and if social networks and neurons share the same small-world network structure, what can the flip of a neuron do? :)