At its most fundamental, information is a binary choice. In other words, a single bit of information is one yes-or-no choice.
James GleickThe Internet is like a town that leaves its streets unmarked on the principle that people who don't already know don't belong
James GleickTiny differences in input could quickly become overwhelming differences in output.... In weather, for example, this translates into what is only half-jokingly known as the Butter- fly Effectโthe notion that a butterfly stirring the air today in Peking can transform storm systems next month in New York.
James Gleick