Wow, so much resentment in this comment ! I for one think I did never fit into one or the other category, I'm an extrovert sometimes, and introvert at some oth

Wow, so much resentment in this comment ! I for one think I did never fit into one or the other category, I'm an extrovert sometimes, and introvert at some other times. One thing is certain is, when I'm problem solving, I don't want to talk to people, because I need to preserve the mental state of my reflexion. And it is very annoying to have to justify that all the time at work. So for me, wether the author is really an introvert or not in the grand scheme of things is not important. What is important is that a lot of people don't feel like talking when they do this kind of jobs, and for a very good reason.