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Keith Barry shows us how our brains can fool our bodies -- in a trick that works via podcast too. Then he involves the audience in some jaw-dropping (and even a bit dangerous) feats of brain magic.

The suits, numbers and colors in a deck of cards correspond to the seasons, moon cycles and calendar. Marco Tempest straps on augmented reality goggles and does a card trick like you've never seen before, weaving a lyrical tale as he deals. (This version fixes a glitch in the original performance, but is otherwise exactly as seen live by the TEDGlobal audience, including the dazzling augmented reality effects.)

This guy was hanging out in Yoyogi park in Harajuku, Tokyo, on a Sunday afternoon. He has clearly practiced a lot! I loved the music he played during his performance. My friends and I were completely mesmerized. He has a very expressive face too, with a charming smile... it really sells the show in the end. Made me feel like a little kid.