【推荐1】BUENOS AIRES-Tributes (悼念) have been pouring in for Argentinian soccer legend Diego Maradona, who has died at the age of 60. Maradona, who is regarded as one of the game's greatest players of all time- died of a heart attack at his home in Buenos Aires. He captained Argentina's 1986 World Cup-winning team, memorably scoring two goals in the quarter-final win over England, including the infamous “Hand of God” goal. Maradona also had a glittering club career, playing for clubs such as Barcelona and Napoli. His death conies just weeks after he underwent surgery for a subdural haematoma (硬脑膜下的血肿).

The sporting world has been paying tribute. Brazil legend Pele said he had “lost a dear friend” adding that “one day, I hope we can play ball together in the sky.”

In a statement, FC Barcelona expressed “its deepest condolences regarding the death of Diego Armando Maradona, a player for our club and an icon of world football. Rest in peace Diego.” Barcelona's fierce rival Real Madrid also paid tribute saying the club was “deeply saddened on the passing of a true legend of world football”. “Real Madrid extends its condolences to his family and friends, his former clubs and football fans worldwide, particularly those in Argentina.”

Former England striker Gary Lineker, who played in the 1986 game. said Maradona was “by some distance, the best player of my generation and arguably the greatest of all time”.

Argentina's President Alberto Fernandez described Maradona as “the greatest of them all”. “You took us to the top of the world. You made us immensely happy. You were the greatest of them all,”he wrote on social media. “Thank you for having existed, Diego. We are going to miss you all our lives. ”The Argentine Football Association said on Twitter :“The Argentine Football Association, through its president Claudio Tapia, expresses its deepest sorrow for the death of our legend, Diego Armando Maradona. You will always be in our hearts.”

【推荐3】Despite being used by 1.34 billion people each year, traveling on the Tube in London can actually be quite lonely. An unwritten rule encouraging reticence (沉默寡言), mixed with classic British reserve, means that even though you’re packed into enclosed space with hundreds of other people, the morning trip can leave you feeling somewhat lonely.

One London resident, however, is trying to change this. “You get on the Tube and it’s completely silent and it’s strange,” says Jonathan Dunne, an American living in London, who has started a campaign of giving out badges (徽章) with the slogan “Tube chat?” last month, encouraging travelers in London to get to talk to one another. “I handed out 500 badges during rush hour in a city of 8 million, expecting most of them to be thrown away, but after about 24 hours it completely snowballed,” he says. Dunne and his “Tube chat” campaign have been reported by media across the world, seeing TV interviews in Sweden, Brazil and the UK, as well as countless website, newspaper and magazine appearances.

Although Dunne says he’s received mostly positive responses, there are always exceptions.

Londoner Brian Wilson responded with a campaign of his own, handing out 500 badges with the words “Don’t even think about it” on them. “I can’t stand the idea of having to talk to strangers on the Tube on my way to work,” he said.

Michael Robinson, 24, a student from London, agrees. “Being on the Tube is the only peace and quiet some people get on their journeys to and from work. It doesn’t need to be spoiled by people coming up and chatting to you,” he says.

“People assume that I just walk up and talk to strangers, which I don’t, but it’s been a great way to meet people you would never have normally spoken to,” Dunne says. So if you ever end up using public transport in London, why not say hello to the person next to you? Just make sure to check for a badge first.

【推荐1】Developed by US company OpenAI, ChatGPT has got viral, winning 100 million internet users since it came out in November 2022. People can ask the robot to write stories and emails, create instructions for cooking a certain food, translate languages, and answer all kinds of questions. In its own words, it is “a language model trained in a large amount of internet text to help users get human-like text.”

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Compared with Siri or other chatbots, ChatGPT uses a much bigger information center for training. It also uses stronger software and hardware to learn things by itself. For example, if it provides a wrong answer to your question, you can tell it the right one and it will correct itself. “It’s a totally different chatbot,” computer scientist Liu Xiaoguang from Nankai University said. “The knowledge level ChatGPT shows is the same as a university student. That’s why it shocked the world.”

But one big problem with ChatGPT is that it makes mistakes or even gives false information. When Rezza, a 28-year-old from Indonesia, used the robot to write an passage, it “gave out many examples which other writers actually hadn’t mentioned at all”, he told a local newspaper. Since the robot is trained using words from the internet, it can also pick up biases (偏见) about certain groups. These are all things that need to be dealt with.

【推荐3】Never play games with a bot (robot) --- it will find a way to cheat if it can. A team from OpenAI, an artificial intelligence lab in San Francisco, has developed artificially intelligent bots that taught themselves to cooperate (合作) by playing hide-and-seek. The bots also learned how to use basic tools to help win.

Bowen Baker at OpenAI and his colleagues wanted to see if the team-based dynamics of the OpenAI Five could be used to produce skills that could one day be useful to humans.

The researchers set their bots loose in a simulated (模拟的) environment filled with fixed walls, movable boxes and ladders, and left them to play team games of hide-and-seek. The bots each had their own view of the world and couldn’t communicate with each other directly.

At first, the hiders simply ran away. But they soon worked out that the quickest way to stop the seekers was to find objects in the environment to hide themselves from view. The seekers learned that they could move boxes around and use them to climb over walls. The bots then discovered that being a team-player--- passing objects to each other or cooperating on a hideout--- was the quickest way to win.

But the real surprise came when the bots started making use of problems or faults. Seekers found that if they push a ladder towards a wall, they could launch themselves into the air and spot hiders from above. Hiders found that they could get rid of the ladders by pushing them aside.

It shows that AI bots are able to find solutions that humans miss, says Baker. “ Maybe they’ll even be able to solve problems that humans don’t yet know how to.” However, it is a large leap (跳跃) from virtual (虚拟的) hide-and-seek to real problem-solving. “ The main limitation is that it is in simulation,” says Chelsea Finn at Stanford University.

【推荐2】A robot created at Standford University is diving down to shipwrecks (沉船) in a way that humans can’t do. Known as OceanOneK, the robot allows its operators to feel like they’re underwater explorers, too.

OceanOneK resembles (像) a human diver from the front, with arms, hands and eyes that capture the underwater world in full color. The back of the robot has computers and eight multidirectional thrusters (推进器) that help it carefully explore the sites of fragile shipwrecks. When an operator at the ocean’s surface uses controls to direct OceanOneK, the robot’s touch-based feedback system causes the person to feel the water’s resistance.

The idea for OceanOneK came from a desire to study coral reefs in the Red Sea at depths beyond the normal range for divers. While OccanOneK was designed to reach maximum depths of 656 feet, researchers had a new goal:1 kilometer, hence the new name for OceanOneK. The researchers changed the robot’s body by using special foam to increase buoyancy (浮力) and fight the pressures of 1, 000 meters more than 100 times what humans experience at sea level. OceanOneK also got two new types of hands and increased arm and head motion.

During OceanOneK’s deep dive in February, team members discovered the robot couldn’t rise when they stopped for a thruster check. Flotations on the communications and power line had collapsed, causing the line to pile on the top of the robot.

OceanOneK’s descent was a success. It dropped off a memorial marker on the seabed that reads, “A robot’s first touch of the deep seafloor — A vast new world for humans to explore.” Khatib, a professor, called the experience an “incredible journey.” “This is the first time that a robot has been capable of going to such a depth, interacting with the environment, and permitting the human operator to feel that environment,” he said.