<P> The Tetris effect is a biochemical, reductionistic metaphor, if you will, for curiosity, invention, the creative urge . To fit shapes together is to organize, to build, to make deals, to fix, to understand, to fold sheets . All of our mental activities are analogous, each as potentially addictive as the next . </P> <P> The term was rediscovered by Earling (1996), citing a use of the term by Garth Kidd in February, 1996 . Kidd described "after - images of the game for up to days afterwards" and "a tendency to identify everything in the world as being made of four squares and attempt to determine' where it fits in"'. Kidd attributed the origin of the term to computer - game players from Adelaide, Australia . An early description of the general phenomenon appears in Neil Gaiman's science fiction poem "Virus" (1987) in Digital Dreams . The ending of The Witness resembles the Tetris effect, where the unnamed protagonist is brainwashed by Jonathan Blow and is no longer capable of thinking about anything but the game's puzzles . </P>

Seeing candy crush when i close my eyes