We have seen them in various science fiction movies and apparently there is a company that for years has been trying to make them real.

Rabbithole media, a Canadian company managed to create a range of clips of a few seconds each which will play when a someone passes by.

This product has already attracted the interest of many hi-tech gurus such as Steve Jobs.

I will not go into the technical details of how this becomes a reality, but it is apparent that they are smartly using state of the art technology. It must be awesome to walk in the street and have a model in a poster besides you react to your presence. See here the companies web page and see an example in the video below

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