Steven Pinker, a professor of linguistics, reckons a conservative estimate of the number of grammatical, 20-word sentences a human might produce is at least a hundred million trillion- far more than the number of grains of sand on Earth.

语言学教授史蒂文·平克估计，保守估计，一个人能说出至少有1亿个亿20个单词的语法句子——远远超过地球上沙粒的数量。