JERUSALEM - A mathematical puzzle that baffled the top minds in the esoteric field of symbolic dynamics for nearly four decades has been cracked -- by a 63-year-old immigrant who once had to work as a security guard.
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Margolis said the solution could have many applications.
"Say you've lost an e-mail and you want to get it back -- it would be guaranteed," he said. "Let's say you are lost in a town you have never been in before and you have to get to a friend's house and there are no street signs -- the directions will work no matter what."
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