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Comment Re:One thing missing... (Score 1) 95

On problem with that scheme: I never, ever talk to my closest friend on Facebook. In fact, if we were able to get an objective measure of closeness/intimacy for each of my friends, created and ordered list from that measure, facebook contact frequency would peak well below the top of the list because other communication modes would take over: email, instant messaging, text messaging, phone calls, hard drinking in bars, etc.

For any algorithm to do better than a rough approximation, it would have to be aware of all communication modes to some extent.

(Unless, of course, there are people who only interact on facebook.)

In 1750 Issac Newton became discouraged when he fell up a flight of stairs.