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Lego blocks: playtime mainstay for industrious kids, obsession for many (ahem!) mature adults. Hillel Cooperman takes us on a trip through the beloved bricks' colorful, sometimes oddball grownup subculture, featuring CAD, open-source robotics and a little adult behavior.
When Hillel Cooperman isn't running his startup or seeking out the world's best food, he's investigating the secret underground world of Lego toys. Full bio »
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