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> I don't get why it's a big deal if Facebook knows who you're going to vote for or what brands you might buy.

It depends on who buys the data and / or the interpretation of that data from them. Just imagine a country like China buying it to predict who will become a subversive and arresting them before anything happens, something akin to pre-cog crime. When I think about it, we can probably aleady do this somewhat accurately with all the data we can collect right now. We have all the tools: open (and affordable proprietary) ML software, open big data frameworks (hadoop, storm, actor model, cassandra), as well as the cloud (AWS, Rackspace). People just need a comprehensive set of data.

> Smarter people mean less susceptibility to manipulation, which is what we are really trying to achieve, right?

Not necessarily, you can't constantly consciously fight thousands of years of evolution; but that's another topic.

So the reason why Americans shouldn't use Facebook is because it's possible that some rogue government somewhere might oppress its people? Those governments seem to be doing a pretty good job already without Facebook's help.

Then there's the argument that in 30 years the US will be one of these countries, too. I wonder why people are so afraid of this, but not of the small chance that they'll be hit by a meteor when they go outside tomorrow to go to work. They've been hit by a meteor exactly as many times as their government has used a "social graph" to oppress them, after all.

For most of human history most people in the world lived under tyranny. In that light the freedoms we enjoy in the USA are a pretty small blip in the data. Why do we think it will always be so, especially with so many people apparently unconcerned about the unprecedented ability of both commercial and government organizations to accurately profile the public/citizens?

To be fair, the San Francisco BART protests come to mind when you talk about recent examples of government oppression. On the other hand, I don't know of anyone who has been hit by a meteor.

That's just one obvious example. As for your analogy, that's like saying people were already doing a great job communicating via phone and email, what's the point of IM, twitter, or social networks in general?

You're vastly underestimating the potential value of access and storage of more and more precise behavioral data combined with the innovation of a startup vs the stodgy, uncreative, stubborn ways of both old world telecom and finance corporations. Back then, even with access to people's purchasing data and past addresses, I would have had to do a lot more work and ask for larger increases to our budget to figure out people's relationships as well as non-purchasing behavioral data aside from traffic. Now I can potentially have access to people's preferences to stuff as opposed to just guessing. Today it's much easier and cheaper.

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