[junklight]

Yes. The fact that Facebook knows what bands and tv all my friends are into is why i choose to do my tens of searches a day on Facebook. Pity it never tells me anything useful.

So the author thought of a cool metaphor about dust and archeologists. Shame it's complete rubbish. This isn't a game where Facebook has more data than Google. It has different data. Useful and cool data for sure. And I'm sure google would love to get their grubby little paws on it too. But if the author thinks that Facebook are casually going to replace Google or even that we are all going to loose interest in what Google offers then really should they even be writing opinion pieces?