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Not un-related: http://en.wikipedia.org/wiki/Nick_Bostrom#Simulation_hypothe...

Pathetic extra, only I am real and you are all just extras.

The me-simulation, http://en.wikipedia.org/wiki/Simulated_reality http://en.wikipedia.org/wiki/Solipsism

The Matrix.

yes, except we're our own extraterrestrials.

(feedback loops in markets are nothing short of amazing - nowhere else can you make something a reality to such a degree by just pretending it's real)