Since 1998, the Global Consciousness Project at Princeton University has been monitoring the outputs of up to 40 random number generators (RNGs) around the world. Each of these RNGs sends 200 bits of randomly generated data every second to a server at the GCP in Princeton. The generators are based on physical devices considered to be fundamentally random.

Amazingly, significant deviations have been noted in the randomness of data from these RNGs around times of major events in the world, including the terrorist attack of September 11.
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