Different Goals, Different Styles

The old explanation: men interrupt women because men are sexist.

The new: generally speaking (as it were), men are trying to establish dominance while the goal of women is to make a connection. Men are not necessarily "sexist"-----they speak that way to other men.

Amherst researcher Elizabeth Aries

analysed 45 hours of conversation and [discovered] that men dominated mixed groups—but she also found competition and dominance in male-only groups. Men begin discussing fact-based topics, sizing each other up. Before long, a hierarchy is established: either those who have the most to contribute, or those who are simply better at dominating the conversation, are taking most of the turns. The men who dominate one group go on to dominate others, while women show more flexibility in their dominance patterns. The upshot is that a shy, retiring man can find himself endlessly on the receiving end of the same kinds of lectures.

In conversation your humble observer's main goal is not to dominate or connect with others but to learn something new about a subject (and if ignorance is on display, at least he'll have learned something about the speakers). A justification for introversion? Perhaps, but as a wise person once said, one learns by listening, not by talking.