Under his definitions I would better define myself as a shy extrovert now, it makes me feel a lot better knowing that.
The animations are awesome, they gave me a good laugh at times.
People are outgoing to many degrees, and dividing the population in half so they can label themselves as either introvert or extrovert seems counter productive.
It just doesn't seem to offer any real insight in to how human beings work, rather its a crass categorization that creates results based on that categorization, and not the reality its based in. (Like the fun fact that 1 out of 2 people may be introverts. Very interesting, because the concept was derived by splitting the population in half in the first place).