德国科学家为保护稀有姓氏出新招

　　They proposed that husbands and wives should be obliged to weigh up which of their two surnames was the rarest and give it to their children. The two scientists published a mathematical model showing what would then happen if common surnames were weeded out this way. And they predicted that the most common names might become only one fifth as common as now after 50 years if the simplest scenario was adopted.　

　　两位科学家建议，夫妻应权衡一下，谁的姓氏更稀罕，孩子就随其姓。两位科学家利用数学模型预测了这一姓氏变革的未来, 那就是如果常见姓氏被摒弃，未来姓氏构成会有哪些变化。他们预测如果姓氏变革实施50年，那么最常见姓氏人口将会减少4/5。