How would you like to have been born without any ability to feel pain? There are such people. One of them is being studied by doctors at a hospital in New York City. He is a 22-year-old clerk who really does not know the meaning of pain. But he wishes he did.

    Not long ago a packet of matches flared up(骤然烧起) in his hand. Luckily the burn was not serious. It caused large blisters(水泡) but still did not bother him. He said the burn felt like a fly crawling(在……上爬行) on his fingers. It has been the same story as far back as he can remember. He has never had headaches or sore(疼痛的) muscles. Bee stings, cuts and bruises(疼痛的) do not hurt.

    Being free from pain is not as wonderful as you may think. The young man has had to have rotted teeth pulled because he never felt toothache warnings. A sudden attack of appendicitis(阑尾炎) could be deadly. Life without pain is as risky as trying to run a cruise ship without fire alarms.

    Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!

    Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull, " he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's. " I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.

    When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.

    Two weeks ago, Ray Johnstone, an elderly man living alone in South Australia, posted a classified advertisement in search of a friend. Specifically, he was on the hunt for a fishing partner, as he no longer had anyone to share his hobby with. “I'm a widowed retired man who is looking for a fishing mate,” he wrote on Gumtree, “My previous fishing mate is now deceased. He will never accompany me to go fishing. I am a land-based fisherman. I have all the gear for all types of fish that is required for land-based fishing.”

    Like all of us, 22-year-old Mati Batsinilas was touched by the man's advertisement, so he reached out to him and arranged an outing. Rather than simply spend the day with Johnstone somewhere local, however, he and his family offered to take him on an all-inclusive weekend fishing trip of Stradbroke Island in Queensland. And, as expected, they had a good time. “Whilst on the island we covered four-wheel driving, site-seeing, fishing, swimming, chats with the locals and the best of all... just relaxing and chatting like mates,” Batsinilas wrote in a Facebook post. “Once you reach a level of maturity in life, age should only be a number. My respect for Johostone is obviously very high, but I treated him exactly the way I would have treated one of my 22-year-old mates.”

    Fortunately, it sounds like Johnstone won't have to place more classified advertisements any time soon. In addition to finding a friend, the pensioner has become a star on the Internet, with many social media users voicing their interests in meeting the now-famous fisherman.

    I have been flying since I was three years old. I am now 27 and cannot ever remember being afraid of flying until I was around 20. Suddenly, it seemed to come from nowhere. I began to be afraid of flying.

    Two weeks before I was to fly I would have nightmares every night, all of which were centered on a plane crash. This would obviously add to my anxieties. The turning point for me was when I had to go on a business trip to Germany. My boss and my husband were with me, but nobody was allowed to talk to me. I was quiet and on the verge of (濒于) tears right up until boarding. On the flight I was even worse. I was crying, shaking and my palm were sweaty. It sounds so ridiculous, but if you have a fear of flying you will understand my distress.

    I got home and my fear was getting out of control. It was upsetting for my husband when we were going on holidays together. I would never be excited because I didn't want to fly as I was certain the plane would crash, or we would be hijacked, or there would be a bomb on board, etc.

    I thought about paying for expensive hypnotism (催眠术) to see if that would help me but I also wanted to try and help myself first. That was when I found this book.

    I read the book as soon as it arrived. It answered the questions I had. After that, when I had a flight coming up, I read a few chapters of the book every night for 2 weeks before the flight. I also took the book in my hand luggage so it was there to refer to if I felt fearful during a flight.

    This book is AMAZING and a MUST-HAVE for any nervous flyer.

    The Great Depression that followed the stock market crash of 1929 saw hundreds of thousands of Americans out of work. In the years of great fear and depression, a lot of American citizens looked desperately to the federal government for assistance. Of all the programs designed by President Roosevelt when he took office in 1932, few were more criticized - or had more lasting impact - than the Work Projects Administration, better known as the WPA.

    The intention of the WPA, which functioned from 1935 to 1943, was to design and administer public works projects to help relieve unemployment. The majority of these projects involved historic or artistic attempts. The WPA's Writers Project, for example, was responsible not only for such practical works as state guidebooks but also for the collection of historically valuable oral histories. Over 2,900 of these records were collected in 24 states. They provide an irreplaceable firsthand account of people's diets, customs, celebrations, and political and religious beliefs at the time.

    The artworks created through the Federal Arts Project are one of the WPA's most lasting achievements. Out - of - work painters, both famous and unknown, created paintings that beautified schools, libraries, and government buildings, WPA photographers traveled across the country recording the hardships of life on small rural farms. When the United States entered World War Ⅱ in 1941, WPA artists were enlisted to produce posters supporting the war effort. Many WPA artworks, including hundreds of small drawings picturing scenes of everyday life, still exist today.

    In 2015, a man named Nigel Richards memorized 386, 000 words in the entire French Scrabble Dictionary in just nine weeks. However, he does not speak French. Richards' impressive feat is a useful example to show how artificial intelligence works—real AI. Both of Richard and AI take in massive amounts of data to achieve goals with unlimited memory and superman accuracy in a certain field.

    The potential applications for AI are extremely exciting. Because AI can outperform humans at routine tasks—provided the task is in one field with a lot of data—it is technically capable of replacing hundreds of millions of white and blue collar jobs in the next 15 years or so.

    But not every job will be replaced by AI. In fact  four types of jobs are not at risk at all. First, there are creative jobs. AI needs to be given a goal to optimize. It cannot invent, like scientists, novelists and artists can. Second, the complex, strategic jobs—executives, diplomats, economists — go well beyond the AI limitation of single-field and Big Data. Then there are the as-yet-unknown jobs that will be created by AI.

    Are you worried that these three types of jobs won't employ as many people as AI will replace? Not to worry, as the fourth type is much larger: jobs where emotions are needed, such as teachers, nannies and doctors. These jobs require compassion, trust and sympathy—which AI does not have. And even if AI tried to fake it, nobody would want a robot telling them they have cancer, or a robot to babysit their children.

    So there will still be jobs in the age of AI. The key then must be retraining the workforce so people can do them. This must be the responsibility not just of the government, which can provide funds, but also of corporations and those who benefit most.