11 common traits of highly intelligent people

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Over on Quora, more than 100 people have answered the question "What are the common traits of highly intelligent people?"

Some users claim to know from personal experience (so humble); others are just taking an educated guess.

As it turns out, many users gave answers that researchers would agree with.

We pulled eleven of the most intriguing Quora responses and explained the science behind them. Here's what we learned.

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11 common traits of highly intelligent people

1. They're highly adaptable

Several Quora users noted that intelligent people are flexible and able to thrive in different settings. As Donna F Hammett writes, intelligent people adapt by "showing what can be done regardless of the complications or restrictions placed upon them."

Recent psychological research supports this idea. Intelligence depends on being able to change your own behaviors in order to cope more effectively with your environment, or make changes to the environment you're in.

(shironosov via Getty Images)

2. They understand how much they don't know

The smartest folks are able to admit when they aren't familiar with a particular concept. As Jim Winer writes, intelligent people "are not afraid to say: 'I don't know.' If they don't know it, they can learn it."

Winer's observation is backed up by a classic study by Justin Kruger and David Dunning, which found that the less intelligent you are, the more you overestimate your cognitive abilities.

In one experiment, for example, students who'd scored in the lowest quartile on a test adapted from the LSAT overestimated the number of questions they'd gotten right by nearly 50%. Meanwhile, those who'd scored in the top quartile slightly underestimated how many questions they'd gotten right.

(Blend Images - Jon Feingersh Photography Inc via Getty Images)

3. They have insatiable curiosity

Albert Einstein reportedly said, "I have no special talents, I am only passionately curious."

Or, as Keyzurbur Alas puts it, "intelligent people let themselves become fascinated by things others take for granted."

Research published in 2016 suggests that there's a link between childhood intelligence and openness to experience — which encompasses intellectual curiosity — in adulthood.

Scientists followed thousands of people born in the UK for 50 years and learned that 11-year-olds who'd scored higher on an IQ test turned out to be more open to experience at 50.

4. They're open-minded

Smart people don't close themselves off to new ideas or opportunities. Hammett writes that intelligent people are "willing to accept and consider other views with value and broad-mindedness," and that they are "open to alternative solutions."

Psychologists say that open-minded people — those who seek out alternate viewpoints and weigh the evidence fairly — tend to score higher on the SAT and on intelligence tests.

At the same time, smart people are careful about which ideas and perspectives they adopt.

"An intelligent mind has a strong aversion to accepting things on face value and therefore withholds belief until presented with ample evidence," says Alas.

(PeopleImages via Getty Images)

5. They like their own company

Dipankar Trehan points out that highly intelligent people tend to be "very individualistic."

Interestingly, recent research suggests that smarter people tend to derive less satisfaction than most people do from socializing with friends.

(David Lees via Getty Images)

6. They have high self-control

Zoher Ali writes that smart people are able to overcome impulsiveness by "planning, clarifying goals, exploring alternative strategies and considering consequences before [they] begin."

Scientists have found a link between self-control and intelligence. In one 2009 study, participants had to choose between two financial rewards: a smaller payout immediately or a larger payout at a later date.

Results showed that participants who chose the larger payout at a later date — i.e., those who had more self-control — generally scored higher on intelligence tests.

The researchers behind that study say that one area of the brain — the anterior prefrontal cortex — might play a role in helping people solve tough problems and demonstrate self-control while working toward goals.

(Alys Tomlinson via Getty Images)

7. They're really funny

Advita Bihani points out that highly intelligent people tend to have a great sense of humor.

Scientists agree. One study found that people who wrote funnier cartoon captions scored higher on measures of verbal intelligence. Another study found that professional comedians scored higher than average on measures of verbal intelligence.

(LWA via Getty Images)

8. They're sensitive to other people's experiences

Smart people can "almost feel what someone is thinking/feeling," says one Quora user.

Some psychologists argue that empathy, being attuned to the needs and feelings of others and acting in a way that is sensitive to those needs, is a core component of emotional intelligence. Emotionally-intelligent individuals are typically very interested in talking to new people and learning more about them.

(Jamie Grill via Getty Images)

9. They can connect seemingly unrelated concepts

Several Quora users suggested that smart people are able to see patterns where others can't. That's because they can draw parallels between seemingly disparate ideas.

As April Astoria notes: "You think there's no relation between sashimi and watermelon? You'd be wrong. Both are typically eaten raw and cold."

Interestingly, journalist Charles Duhigg argues that making these kinds of connections is a hallmark of creativity (which, depending on who you ask, can be closely linked to intelligence). Duhigg studied the process through which Disney developed their hit movie "Frozen" and concluded that the movie only seems clever and original because it "takes old ideas and pushes them together in new ways."

(Yagi Studio via Getty Images)

10. They procrastinate a lot

Mahesh Garkoti says smart people are likely to procrastinate on quotidian tasks, mainly because they're working on things that are more important.

That's an interesting proposition — but some scientists would say that smart people procrastinate even on work they find meaningful. Wharton psychologist Adam Grant suggests that procrastination is key to innovation, and that Steve Jobs used it strategically.

As Grant told Business Insider's Rachel Gillett, "The time Steve Jobs was putting things off and noodling on possibilities was time well spent in letting more divergent ideas come to the table, as opposed to diving right in with the most conventional, the most obvious, the most familiar."

(diego_cervo via Getty Images)

11. They contemplate the big questions

According to Ram Kumar, intelligent individuals "wonder a lot about [the] universe and meaning of life." What's more, Kumar writes, "they always [ask] what's the point of everything?"

That existential confusion may be one reason why smart people are more likely to be anxious. As David Wilson reported in Slate, intelligent people may be better equipped to consider situations from a range of angles, meaning they're always aware of the possibility that things will go awry. Perhaps their anxiety also stems from the fact that they consider a given experience and wonder: Why bother going through it in the first place?

()Monashee Frantz via Getty Images

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