I come from the intelligence community, and the fun of analyzing intelligence is not to get it but to put it into context.
All of a sudden, I may start to look at people who don't have any hair, for no reason. It doesn't mean anything. Why should I know that? I don't know. Maybe in another context I will link that with something else, and oh, that's interesting. I have a profile of an individual who fits this image. All of a sudden, the no-hair issue becomes a very hot issue, and it may exceed, at some point, the mandate I have in my agency.
Who is the judge of evaluating where I stop gathering information, or whether I should stop?