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Astrophysicist Mario Livio thinks that our willingness to learn is, in fact, what makes us human. "Other animals are curious, but only humans are worried and curious about reasons and causes for things. Only humans really ask the question, 'Why?'"
Livio says we're even born with it. "There are many studies that have shown that there is a strong genetic component to curiosity," he explained. "It is also the case that some people are more curious than others, in the same way, that some people have a talent for music and others don't or some people are smarter than others ... But all people are curious, with the possible exception of people who are very deeply depressed or have certain kinds of brain damage."
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But testing out a new idea can lead to disaster, too."Curiosity probably led to the vast majority of human populations going extinct," Agustín Fuentes, a professor of anthropology at Princeton University, told Live Science.
For example, the Inuit of the Arctic regions of Greenland, Canada, and Alaska, and the Sámi people of Europe's northern reaches have "created incredible modes to deal with the challenges" of living in northern climates, but "what we forget about are the probably tens of thousands of populations that tried and failed to make it" in those challenging landscapes," he said.
But even though not all curious humans lived to pass their penchant for exploration on to their descendants, many did. We can't help but think, "Huh, I wonder what would happen if ..." and the popularity of the subreddit Today I Learned proves it.
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