Decision—thinking is not unlike poker—it often matters not only what you think, but also what others think you think what you think they think you think. The mental process(过程) 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, life itself are games which we must normally play with very imperfect information. Business decisions are often made with many unknown and unknowable factors(因素), 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.

    “Beating is a sign of affection, cursing (骂)is a sign of love.” Many may not expect to hear the words of the old Chinese saying in these modern times—with parents wealthier and better educated than they have ever been—but experts say they still ring true.

    Today, it seems, Chinese parents are more likely to send their children to pre­college military academies in the United States in the hope that some tough love will pave the way to success.

    “Good education doesn't mean letting your children enjoy privileges, especially our boys.” said Song Wenming, an entrepreneur (企业家)in Jinhua' East China's Zhejiang province. “They should be raised in tough conditions to know what to fight for in the future.”

    In August, Song sent his 17­year­old son to Valley Forge Military Academy (VFMA) in Pennsylvania. And he is far from alone, even though it takes a lot of money—around $48,000 per year—to send a child to a strict military school.

    Statistics show that an increasing number of Chinese students have been registering with such academies .

    A few years ago, there were no Chinese students at Valley Forge. Today, there are 28.“All of the Chinese students at Valley Forge came from wealthy families; some of them were spoiled.” said Jennifer Myers, director of marketing and communications at the school.

    Song's only son, Song Siyu, had a rocky start during his first six weeks at the school. The teenager said he went to the school voluntarily but did not expect it to be as difficult.

    Now, three months later, he has perfected the art of taking a bath in 35 seconds, finishing a meal without looking at his food, and making his bed with precision. He can even take criticism, no matter how unreasonable.

    “The training is hard but I know it is good for self­development of individuals.” said Song Siyu. “The endless training and scolding are just ways to build up our character; they are not personal .”But his enthusiasm is not universal. Ten of the 13 Chinese students who joined the academy this year have transferred to other schools. But for those who stick with it, there is a reward for all the hard work.

    Whether rich or poor, parents who have books in the home increase the level of education their children will attain, according to a 20-year study led by Mariah Evans.

    For years, educators have thought the strongest predictor of attaining high levels of education was having parents who were highly educated. But, the study showed that the difference between being raised in a bookless home compared to being raised in a home with a 500-book library has as great an effect on the level of education a child will attain as the difference between having parents who are barely literate (有文化的) and having parents who have a university education.

    Being a sociologist, Evans was particularly interested to find that children of lesser-educated parents benefit the most from having books in the home. What kinds of investments should we make to help these kids get ahead? The results of this study indicate that getting some books into their homes is an inexpensive way that we can help these children succeed. Evans said, "Even a little bit goes a long way. Having as few as 20 books in the home still has a significant impact on motivating a child to a higher level of education, and the more books you add, the greater benefit the children get.”

    The researchers were struck by the strong effect having books in the home had on children's educational attainment even above and beyond such factors as education level of the parents, the father's occupation or the economic level of the country.

    Having books in the home is twice as important as the father's education level, and more important than whether a child was brought up in a developing country or a developed country. Surprisingly, the difference in educational attainment for children born in developed country and children born in developing country was just 2 years, less than two-thirds of the effect that having 500 or more books in the home had on children.

    For art, the year 2115 will be one full of events. In May of that year in Berlin, the philosopher-artist Jonathon Keats' "century cameras" — cameras with a 100-year-long exposure (曝光)time — will be brought back from hiding places around the city to have their results developed and exhibited Six months after that, the Future Library in Oslo, Norway, will open its doors for the first time, presenting 100 books printed on the wood of trees planted in the distant past of 2015.

    As Katie Paterson, the creator of the Future Library, puts it: "Future Library is an artwork for future generations". These projects, more than a century in the making, are part of a new wave of "slow art" intended to push viewers and participants to think beyond their own lifetimes. They aim to challenge today's short-term thinking and the brief attention spans of modem consumers, forcing people into considering works more deliberately. In their way, too, they are fighting against modem culture — not just regarding money, but also the way in which artistic worth is measured by attention.

    In a similar fashion, every April on Slow Art Day, visitors are encouraged to stare at five works of art for 10 minutes at a time — a tough task for the average museum visitor, who typically spends less than 30 seconds on each piece of art.

    Like the Future Library, the century cameras are very much a project for cities, since it's in cities that time runs fastest and the pace of life is fastest. "Since I started living in a city, I've somehow been quite disconnected/' Anne Beate Hovind, the Future Library project manager, who described how working on the library drew her back to the pace of life she knew when she was growing up on a farm in her youth, told the Atlantic magazine.

    China and India are leaders in improving global(全球的) tree cover, a new study based on NASA research showed.

    They took a 31.8% part together of the total global new leaf area between 2000 and 2017. China played a major role, adding 25% to this increase, and India added 6.8%, followed by Canada and Russia. The study in the Nature Sustainability journal shows that more than 5.5 million square kilometers of green leaf area was added globally. Since 2000, there has been a five-percent increase in global green cover, it said.

    "The greening over the last twenty years shows an increase in leaf area on plants and trees which is as large as the area of the entire Amazon rainforest," Chi Chen, a Boston University researcher and lead of the study told Nature Sustainability. Large plantation activities to protect forests in China contributed nearly 42% to the country's green cover, and agriculture added another 32%. In India, 82% of the increase in leaf area was because of agriculture.

    "China and India take up one-third of the greening, but hold only nine percent of the planet's land area covered in green plants," Chi Chen told NASA Earth Observatory. "That is a surprising finding, considering the land degradation(退化) in countries with large populations."

    Boston University's research team first detected an increase in global green cover in the 1990s but were unsure about what contributed to the increase. Finally, with the help of NASA's Terra and Aqua satellites research, they managed to find out the increase in leaf cover from different areas and places.

    Which country can you travel to in 2020 that will allow you to go for longer, enjoy a higher standard, and save more money? The following destinations offer accommodation, transportation, and food for less.

Kyrgyzstan, $25/day

    Kyrgyzstan is the choice for most travelers interested in trying out Central Asia, and most well-suited to travelers of all budgets. Food is cheap, so is getting around using the minibuses. You can find hostels and local home stays for less than $10. Meals cost $4 – $8 per day.

    Romania, $33/day

    If you are planning a European trip that's affordable and a little bit off the beaten path, Romania is perfect for you. Unlike other popular places, many charming towns here remain unknown to most foreigners. You can also take free walking tours in the numerous historical sites. Hostels run $10 – $15 per night, food is hearty and delicious, and the public transportation is reliable and affordable. Meals cost $10 – $15 per day.

    Arizona & Utah, $55/day

    For an American Southwest road trip, you'll spend an average of $110/day when you are solo. If you have just one other person, you'd be able to split the costs almost perfectly in half. If you have two other people along, take it down to one third and so on. The more the merrier.

    South Africa, $40/day

    Any hostels in South Africa are in beautiful settings and each has a unique personality, and affordable too. Food can get expensive. To save money, cook your own food. Grocery stores are plentiful and have reasonable prices. By at least cooking your own breakfast, you can save a lot of money. The best (and possibly cheapest) way to get around the country is to rent a car and share with 3 other people. Meals cost $12 – $15 per day.