It's hard enough to write with both hands at the same time. But Chen Siyuan of Handan, China can do even more: she can simultaneously write Chinese with one hand and English with the other hand.
Link (warning: auto-sound) -via Marginal Revolution
Check out more amazing talents over at our Mad Skills blog
As I recall, President Garfield also had that ability. He wrote Greek and Latin at the same time.
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I had a math prof in college who was ambidextrous and would solve two problems on the chalkboard at the same time.
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