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In 1970, at the Information center of the Museum of Modern Art, Hans Haacke posited this query, a response algorithm, and its visual feedback/evolving result as art:

Would the fact that Governor Rockefeller has not denounced President Nixon's Indochina Policy be a reason for you not voting for him in November?

"Ballots" were dropped into either of two plexi-glass ballot boxes (visitors chose "yes" twice as often as "no").

Hans Haacke MOMA Poll (1970)