I think people online are putting far too much emphasis on the introvert/extrovert distinction. At any rate, we were growing up, and then stutter started appearing at some point. Whatever we managed to arrive at in our development up until that point might be more or less modified by the appearance of stutter, and whatever we developed as further might be more or less influenced by the presence of stutter. Basically, don't buy too much into the idea that stutter _determines_ you. There's plenty of stuff you can do where stutter was never a factor. Also, there's plenty of capacity for change beyond that. You may be a stutterer, but that doesn't really say quite as much as people sometimes take it to say. :)