translation.en: And the limiting step here wasn't the unknown diversity of life, but rather the taxonomic specialists who can identify and catalog these species that became the limiting step.
translation.zh: 这里的限制步骤并不是那些未知的生命物种， 而是分类学专家， 那些可以对这些物种进行鉴别并归类的人 成为了限制步骤。