google buying orkut

So why did google buy orkut?
Ans: To study a complex adaptive system where the individual consituents are intelligent and unpredictable!!
Of course, google can easily study a system where the individual constituents are predictable and dumb like a computer network, internet, etc.

So one can say, that to google, a member in orkus is a node and its friendship is a link. Hence orkus is meant to be a giant research study of a graph. I'm really curious to find out what google has discovered. Do humans, despite their unpredictible nature, behave like any other system as a whole?

This is the million dollar question.