MIT made a tool to analyze metadata from Gmail

How much metadata from your mailbox can tell about you? Quite a lot - judging by what the researchers managed to achieve from the Massachusetts Institute of Technology's media laboratory.

They created the Immersion web application, which - as soon as you give it permission - will analyze the entire history of your correspondence in Gmail in order to piece together the network of your contacts, writes The Verge.

What is Immersion actually looking at? Only on senders, recipients (including in CC) and timestamps in your email archive. He does not read the topics of the letters and their very content.
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However, the end result is quite impressive, especially if you have a long history of correspondence. An arbitrary list of your contacts may actually be logically related.

“All this data is about people. The data is basically meaningless without people, ”says Cesar Hidalgo, one of the creators of Immersion. "When you see them together, it is in a sense an out-of-body sensation."

Your result may not be as astounding, but with the help of Immersion you can show that, even with such limited information as metadata, you can visualize the relationships contained within them.