you know, our existence would seem to be amazingly improbable, because there's an enormous number of genetically possible humans, if you can compute it by looking at the number of the genes and the number of alleles and so forth, and a back-of-the-envelope calculation will tell you there are about 10 to the 10,000th possible humans, genetically.
你懂的，我们看起来 都是以极低的概率来到这个世界， 因为基因组合可形成的人有无数多种， 如果你以基因的数量 和等位基因的数量来计算， 很快就可以算出， 大概有10的10000次方 个可能的人。