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When an entity (can be an organism or a society or a ...) starts exhibiting behavior wholly enabled by excess that simultaneously reduces the level of (what one might call) progressive entropy available to the entity then that entity is doomed to failure.

A behavioral detractor that causes an species to devolve, creating a feedback loop of degradation and thus inevitable extinction.
That the Zeitgeist is defined more by the pending release of a white iPhone than mass starvation in Somalia is an example of extinction level idiocy on a societal level.

The high incumbency rate for members of Congress reflects an alarming level of extinction level idiocy present in the general electorate.
by koolmeme September 22, 2011
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