Many institutions, from neolithic villages to the maniples of the Roman army, seem to be organised around the Dunbar number.
从新石器时代的村落，到罗马军团中队，许多机构都似乎是围绕邓巴人数来组建。
Dunbar has found that the human brain has evolved in a way that means we can only give real attention to a particular number of people.
邓巴发现，人类大脑的进化方式使我们只能真正关注到特定数量的人。
For example, if the number of friends on your online network is greater than that, according to Dunbar, this would imply the relationships are only superficial.
举个例子，根据邓巴的说法，如果你通过网络结交的朋友比通过这种方式的多，这就意味着这些好友关系只是表面的。
Dunbar, a British anthropologist and evolutionary biologist, argued in 1998 that there is cognitive limit to the number of relations that any one primate can maintain.
Dunbar是一位英国的人类学家和进化生物学家，他在1998年提出，对于任何一个灵长类动物，他所能维持的关系数量都有一个认知限度。
In fact, 150 is "the average number of people to whom most of you send Christmas CARDS," Dunbar says.
事实上，“150张圣诞节卡片，这是你发卡片的人的平均数”。登巴说。
Butt you might not know that Robin Dunbar, the anthropologist behind the number, has since also suggested that those relationships are layered, like an onion.
但是你也许不知道这个数字背后的人类学家罗宾·邓巴，他后来也指出，人际关系就像洋葱一样，是分层的。
Dunbar says his number of 150 "refers to those people with whom you have a personalized relationship, one that is reciprocal and based around general obligations of trust and reciprocity."
Dunbar说他定出的这150人“指的是那些和你直接建立关系的人，彼此信任，互惠互助。
Dunbar says his number of 150 "refers to those people with whom you have a personalized relationship, one that is reciprocal and based around general obligations of trust and reciprocity."
Dunbar说他定出的这150人“指的是那些和你直接建立关系的人，彼此信任，互惠互助。
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