If the majority of people are extroverted, how would it not be considered normal or typical behavior?
Per a 1998 study, 50.7% percent of Americans are introverts. http://introvertzone.com/ratio...
Hmm. Couldn't the results be skewed? Seems like they would have trouble reaching the introverts for the study. Could be that there are more undiscovered introverts. (I'm only being halfway-sarcastic here. I assume they controlled for this somehow in the study, but I have to believe that it is harder to contact the introverts.)
It's analogous to the situation in politics, in which a loud-mouthed group with in the minority often ends up dominating the conversation. In the study, they could have an easier time finding the extroverts, so it seem like there are more of them.
Duolingo founder and CEO Luis von Ahn is an associate professor in the Carnegie Mellon University Computer Science Department, and was one of the original developers behind reCAPTCHA. Google acquired ReCAPTCHA in 2009 for "an undisclosed sum," a bit of history that led TechCrunch to speculate back in 2011 that Google would buy Duolingo within six months -- which didn't happen. But don't despair. It's still possible that Google (or another big company) might absorb Duolingo. We'll just have to wait and see -- and possibly improve our foreign language skills while we wait. (Alternate Video Link)