I see the relation - but it's also how nearly all information is gathered and infered - even at a human level. You take incomplete information, look at the land

I see the relation - but it's also how nearly all information is gathered and infered - even at a human level. You take incomplete information, look at the landscape, and try to fill in the blanks. A friend you're meeting tells you he's in the starbucks with a red shirt. That's not enough information to know his exact coordinates. But you combine and infer - you know how many starbucks there are in the vicinity, and which one he's likely to be at. You know he's in a red shirt - but there's several people. Luckily you already know his height well enough to filter out false positives within milliseconds. The method I don't find intrinsically scary - but perhaps the scale and depth at which it happens, and for what motives.