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" Before we move on, let me clarify that there is a fundamental difference between what we do and how predictable we are. When it comes to things we do-like the distances we travel, the number of e-mails we send, or the number of calls we make-we encounter power laws, which means that some individuals are significantly more active than others. They send more messages; they travel farther. This also means that out-liers are normal-we expect to have a few individuals, like Hasan, who cover hundreds or even thousands of miles on a regular basis.
But when it comes to the predictability of our actions, to our surprise power laws are replaced by Gaussians. This means that whether you limit your life to a two-mile neighborhood or drive dozens of miles each day, take a fast train to work or even commute via airplane, you are just as predictable as everyone else. And once Gaussians dominate the problem, outliers are forbidden, just as bursts are never found in Poisson's dice-driven universe. Or two-mile-tall folks ambling down the street are unheard of. Despite the many differences between us, when it came to our whereabouts we are all equally predictable, and the unforgiving law of statistics forbids the existence of individuals who somehow buck this trend. "
― Albert-László Barabási , Bursts: The Hidden Pattern Behind Everything We Do