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In our society, where extroverts make up three-quarters of the population, loners (except Henry David Thoreau) are pegged as creepy or pathetic. But soloists ... can function just fine in the world—they simply prefer traveling through their own interior universe.
Introverts aren't just less sociable than extroverts; they also engage with the world in fundamentally different ways. While outgoing people savor the nuances of social interaction, loners tend to focus more on their own ideas—and on stimuli that don't register in the minds of others.