Upon returning home, Duff checked his notebooks from a few years earlier, and realized the formulas were the same as those he developed to use string theory to describe black holes.

在回家的途中，达夫检查了他几年以来的笔记，同时意识到那些公式与他自己建立的公式相同，他的那些公式是用弦论去描述黑洞。

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There are reproductions of elementary-school notebooks decorated with black-and-white scenes from a bygone Thailand.

WSJ: A Newer Nostalgia