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November 1997

The Great Unknown: Readers Respond

In July, we asked readers to pick today's most profound questions of science. The results, tabulated here, show that while the questions are scientific, the process of identifying them is anything but.

By Robert Hazen

On her deathbed, according to her secretary Alice B. Toklas, Gertrude Stein asked, "What is the answer?" Receiving no reply, she continued, "Then, what is the question?"

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