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Because of the subliminal messaging prior to the trailers. "Don't forget to stop by the concession stand to pick up an ice cold soda! It goes great with popcorn!" Once you do follow through, the brain retains memory of how good it felt to satisfy the urge for soda and popcorn. The next time you go to the theatre you stop by the concession not because you have money to waste but because you are trying to re-obtain the same gratification you remembered. Thus, the cycle is established. Why else do you think the theatre invests in advertising prior to the movie?

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15y ago

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