A company like this could quickly become one of the most valuable in the world. As Alexis Madrigal of the Atlantic points out, today your profile can be bought for half a cent or less, but the value of a user to the Internet advertising industry is more like $1,200 per year. Google’s sliver of your data is worth about $20, Facebook’s $5, and so on. Add to that all the slivers that no one has yet, and the fact that the whole is more than the sum of the parts—a model of you based on all your data is much better than a thousand models based on a thousand slivers—and we’re looking at easily over a
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