A two-dimensional guy collaborates with a three-dimensional one, much like in the AdS3/CFT2 correspondence. They have also exchanged their pints.
Julian Beever, the three-dimensional one, has created dozens of similar anamorphic illusions or "trompe-l'œil", if you wish. Laptops, flies, globes, bottles with 3D dwarves, nudes, chasms with UK politicians, and many other things that look perfectly three-dimensional but they are just drawings on the sidewalk. ;-)
Additional pages with similar illusions:
Time, Born Again - Lee Smolin has a new book out, Time Reborn: From the Crisis in Physics to the Future of the Universe. His previous subtitle lamented “the fall of a science...
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