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Gardner later wrote a deeper article for Skeptical Inquirer. That later article mentions my work, by the way, I'm known as a critic of Khalifa's work. I'd say that Gardner did call the work ""ingenious,"" but that doesn't mean that he supported it. Even a nefarious scheme could be called ""ingenious."" The Scientific American article shows notice of Khalifa's work, and the present text, which omits ""ingenious,"" is probably more balanced.   "