Decision-thinking is not unlike poker—it often matters not only what you think, but also what others think you think and what you think they think you think. The mental process is similar. Naturally, this card game has often been of considerable interest to people who are, by any standards, good thinkers.

    The great mathematician John von Neumann was one of the founders of game theory. In particular , he showed that all games fall into two classes : there are what he called games of “ perfect information ”,games like chess where the players can't hide anything or play tricks : they don't win by chance , but by means of logic and skills . Then there are games of “imperfect information”, like poker, in which it is impossible to know in advance that one course of action is better than another.

    One mistaken idea about business is that it can be treated as a game of “perfect information”. Quite the reverse, business, polities, life itself are games which we must normally play with very imperfect information. Business decisions are often made with many unknown and unknowable factors, which would even puzzle the best poker players. But few business people find it comfortable to admit that they are taking a chance, and many still prefer to believe that they are playing chess, not poker.

    Chinese tech giant Tencent Holdings Ltd, the largest global gaming provider and the operator of QQ, an instant messaging software service, has launched a series of scientific exploration events aimed at encouraging young people to explore the outside world, instead of being continuously absorbed online.

    “QQ has been in the market for 18 years, but it is not aging, and its application has become younger and trendier. We hope that more young Chinese can use the app to connect with different people and views worldwide. We never worry about losing game players. Instead, we hope that players can actually go out to learn more,” said Li Dan, general manager of marketing department of the social network group at Tencent.

    China's gaming market netted (净赚) sales revenues of 218.96 billion yuan ( $33.75 billion) in 2017, jumping 23.1 percent year-on-year. Meanwhile, the number of mobile gain players in China reached 462 million, adding 10 percent over the last year. According to Tencent the number of active users of QQ, who are 21 years old or younger, has been increasing, and they tend to use the app for a longer time.

    Starting May 22 of last year, QQ organized free trips for young people to Galapagos, Namibia, Spain and the Antarctic, but it didn't reveal the specific amount it contributed to those trips. During each trip, it selected three to four participants from those who uploaded videos and made specific travel plans online. The finalists stand out with their clear video statements and their enthusiasm about going on adventures.

    “Tencent's approach appears to be contradictory with its own interests. But, in fact, this is consistent with the company's long-term growth strategy and will promote its business by establishing a good social image,” said Neil Wang, president of consulting firm Frost & Sullivan in China.

    121min Adventure/Biography/Drama

    Storyline: A group of climbers start their final climb to the summit of Mount Everest，the highest point on Earth. With little warning，a violent storm strikes the mountain，swallowing the adventurers...

    Director: Baltasar Kormakur

    Stars:Jason Clarke, Ang Phula Sherpa, Thomas M.Wright

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    War Room

    120min Drama

    Storyline: Tony and Elizabeth Jordan, seemingly have it all--great jobs, a beautiful daughter, their dream home. In reality, their marriage has been a war zone. With guidance from Miss Clara, an older, wiser woman, Elizabeth discovers she can start fighting for her family instead of against them.

    Director: Alex Kendrick

    Stars: Priscilla C. Shirer, T.C. Stalligs, Karen Abercrombie

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    Straight Outta Compton

    147min Biography/Drama/Music

    Storyline: In 1987, five young men, using honest rhymes, put their frustration and anger about life into the most powerful weapon they had: their music. Straight Outta Compton tells the true story of how these cultural rebels（叛逆者）stood up to the authorities that meant to keep them down and formed the world's most dangerous group N.W.A.

    Director: F. Gary Gray

    Stars: O'Shea Jackson Jr., Corey Hawkins, Jason Mitchell

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    A Walk In The Woods

    104min Adventure/Biography/Comedy

    Storyline: After spending two decades in England, Bill Bryson returns to the US, where he decides the best way to connect with his homeland is to hike the Appalachian Trail. He travels with Katz, one of his oldest friends. The trouble is that the two have a completely different definition of the word, “adventure”. The real fun begins...

    Director: Ken Kwapis

    Stars: Robort Redford, Nick Nolte, Emma Thompson

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    Even though it's the 18th movie from the Marvel Universe, Black Panther is the first one to feature a black superhero with a primarily black cast(演员阵容).

    The film tells the story of the Black Panther, a superhero who takes his father's place as king of the fictional African country Wakanda. The film came out in Chinese mainland cinemas on March 9, passing the $1 billion (about 6 billion yuan) mark at the global box office and becoming the No. 2 superhero release of all time on March 10.

    However, Black Panther means more than just the money it's making. As the Guardian noted, the film is already being regarded as "a positive force for social change".

    The wild success of Black Panther lies in the fact that it gives voices to minorities who are rarely given room in popular culture. "It carries a weight that neither Thor nor Captain America could lift: serving a black audience that has long gone under-represented," Time noted.

    "It makes me feel proud and confident that we made it on screen in that way," Rasheed Butler, 14, from a black community in California, US, told the Marin Independent Journal.

    The superhero Black Panther is inspiring, but the movie also highlights brilliant black women. For example, Black Panther's teenage sister is a tech genius. She designs gadgets for her brother and develops resources that make the isolated Wakanda wealthy scientifically and technologically advanced.

    "What I love about the way this film represents women is that each and every one of us is an individual, unique," Kenyan-Mexican actress Lupita Nyong'o, who plays a spy in the movie, told the Los Angeles Times. "I think that's a very powerful message to send to children – both male and female."

    Powerful characters aside, the movie has social implications. While the Black Panther tries to keep his country and people away from the outside world, others want to make use of Wakanda's advanced technology to fight injustice. "But neither option is truly tenable," The Verge noted. "It suggests that these destructive cycles may only be broken through guidance, education, and global leadership."

    Instead of hiding away from current issues of race and economic differences, the movie explores what it means to be black in the US, in Africa and in the world. It deals "head-on with the issues affecting modern-day black life", Time concluded.

    The brain is a remarkable part. It's responsible for thoughts and feelings. Now a new study finds that going through tough times as a kid also can have an impact. The adult brains of people who lived through lots of stress before the age of six—and then became depressed or anxious as teenagers—were different compared with adults who had an easier childhood. It seems that teens changed the shape of their brains by internalizing (使内在化) the stresses experienced years earlier.

    Researchers already knew that the shape and size of a child's brain can change in response to lots of stress. They also knew that adults were more likely to be depressed if, as kids, they'd lived in poverty. Some studies showed that these depressed adults had unusual changes in their brain shape. But no one had tested if the early stress and later brain changes were linked.

    Scientists in England studied almost 500 boys from birth until the ages of 18 to 21. Sarah Jensen is one of the new study's authors. Almost all of the boys her team studied experienced some hard times as kids. And, she concludes, "This is not necessarily harmful." To some extent, that's just life. What can be dangerous, she says, is when children experience too many forms of difficulties. Her team's new data suggest that the tougher the childhood, the stronger the impact on the brain might be.

    What's happening in the world around us relates to how we feel. Her team linked more childhood stress to more depression. Still, she notes, it's possible that if you find support for anxiety or depression, you might be able to prevent the changes seen here. "If you can change the environment, you can change the course of things," Sarah says. So, she recommends, if teens develop anxiety or depression, it's good to ask for psychological doctors to give advice.

    "If they hated me they didn't talk to me about it," says a young German manager at a media firm in Frankfurt. Still, he says it was noticeable that when an employee 20 years older than him thanked him for buying lunch he had to swallow twice before adding the word "boss".

    Older workers sometimes envy being managed by a younger colleague. Precocious (老成的) youngsters, too, can feel awkward about bossing their elders around. But in Germany a shortage of skilled workers means that such situations are becoming even more common.

    The country's population is projected to shrink. As more Germans retire, fewer youngsters are entering the work-place to replace them. As a share of the working population the number of 15-to-24-year-olds has fallen by ten percent since the 1980s, says the German Federal Employment Agency. Firms competing to hire young talent have to promote them earlier as a result. A paper by professors at the university of Cambridge and WHU, a German business school, to be published in the Journal of Organizational Behavior, suggests this could be a problem.

    As in many countries, German work-places are legally obliged to overlook age when deciding whom to promote. Yet according to Jochen Menges, one of the authors, when an ordinary worker leap-frogs a more experienced one it can leave the latter with feelings of "anger, fear and disgust." People tend to judge their own standing by the success of their peers, and to see failure in being bossed about by someone younger. The relationship between feelings of anxiety and the age of the boss is clear, according to Mr Menges. A manager who is younger by one year is somewhat unsettling; a gap of 20 years is far more discouraging.

    German firms certainly shouldn't return to a system in which age equals to rank. But young people tend to be sensitive about managing upwards. And older workers should be encouraged to see the bright side of learning new skills. Daimler, a big German car firm, says it promotes age- mixed teams, so that knowledge can be transferred between generations. It also supports young managers by asking retired employees to provide temporary support.