We'll come back to these issues in a minute, but I'd like to say something about the theories of Robin Dunbar—an anthropologist at Oxford University.
我们稍后会回到这些议题上，但我想谈谈罗宾·邓巴的理论——他是牛津大学的人类学家。
2
Dunbar is not against online relationships, but he maintains that face-to-face interaction is essential for the initial creation of true friendship and connections.
邓巴并不反对线上关系，但他坚持认为，面对面的交流对于最初建立真正的友谊和联系至关重要。
3
According to Dunbar, online social networking appears to be very good for "servicing" relationships, but not for establishing them.