'Magic' billboard reads people's minds

To promote the Quebec City Magic Festival, a unique outdoor eye-tracking billboard was set up at a bus shelter. Unbeknownst to commuters, ‘The Mind Reading Billboard’ would use modern-day technology to identify the card they set their sights on, although the trick truly seemed magic with its startling degree of accuracy. As it’s always better to show than to tell, the billboard provides just a taste of what event-goers can expect from the festival.
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Via: Guerilla Blog