Now, I talked to Paul afterwards -- I wanted to check to find out how he'd calculated this, and get the sources and so forth -- and he also gave me a paper that he had written on this.
后来我找到了保罗 想向他求证他是怎么计算出这个数据的 以及他的资料来源，等等 他给了我一篇他写的这个题目的论文