4 . The pandemic has affected nearly all aspects of modern life, from the clothes we wear to the food we eat. There is one thing, however, that has remained almost unchanged: the emojis we send.

According to data from the Unicode Consortium (统一码联盟), nine of the 10 most-used emojis from 2019 also ranked among the top 10 this year. The tears of joy emoji ranked No.1, despite members of Gen Z deeming it uncool.

“It speaks to how many people use emojis. If emojis were a purely Gen Z thing, then you wouldn’t see it so highly ranked,” said Alexander Robertson, an emoji researcher at Google. “Because of the large number of people using emojis, even if one group thinks something is lame, they have to be a really big group to affect these statistics.”

And it makes sense that Gen Z would think that certain emojis aren’t fashionable. It’s part of the “teenager experience of creating a sense of subculture where there’s a right way and a wrong way of behaving.” Plus, there is a range of laughter that can be expressed: There’s light chuckling. There’s acknowledgement laughter, which is just a marker of empathy. Using emojis, such as the skull face (“I’m dead”) or crying face ( uncontrollable tears of laughter), can help to illustrate that range.

“It basically indicates that we have what we need to communicate a broad range of expression, or even very specific concepts,” Mr Robertson said. “You don’t necessarily need a Covid emoji.”

“We did see a rise in the use of the virus emoji. But it wasn’t made remotely into the most-commonly used ones because we still had plenty to laugh about and plenty to cry about, whether it was because of the pandemic or not,” said Lauren Gawne, a senior lecturer in linguistic at La Trobe University in Melbourne, Australia.

“Even in the midst of this massive global pandemic that preoccupied so much of our time,” She added. “We still spent a lot of time wishing each other happy birthday or checking or laughing about some new and unexpected elements of this slow-burning weirdness.”

5 . A project called “I Am A Scientist” is giving middle and high school students the opportunity to interact with modern-day researchers. Below are stories from some of the scientists who are involved in the program.

“I have a black belt in Taekwondo (跆拳道). I am driven by a deep desire to help others. I believe that all people have a fundamental right to health care.”

Her work: During the Zika epidemic, Al-Alusi met with the communities that had been hardest hit by the virus, using data and mathematical models to keep them safe and healthy.

Background: Al-Alusi was born in California but her parents emigrated from Iraq. This experience provided her with an understanding of the health needs of the immigrant community.

“I’m a huge sports fan. I’ve traveled to more than 40 countries. I’m a licensed scuba diver but a terrible swimmer. I hated science in high school.”

His work: Amamoto studies the tiny but amazing brains of animals that have a superpower — the ability to regenerate. He learns what factors help these special brains regrow, so that we can try to treat diseases like Parkinson’s.

Background: Amamoto lived in Japan until the age of eight, when his family moved to Chicago. He had to overcome major language barriers which saw him shift between speaking English at school and Japanese at home.

“I once competed in a robot competition. I love Beyonce. I love cooking. I’m a doctor who studies ways to improve women’s health.”

Her work: Connor is a doctor at a hospital in Boston where she studies cancer cells in a lab using microscopes and computers, but she also works directly with patients who are undergoing tests for new cancer treatments.

Background: Growing up in Florida, Connor was a serious kid who stressed about the little things. She was into her schoolwork and loved to put on plays with her friends in which she would organize the whole thing and assign everyone a role.

6 . Some people say that A. I. large language models can be unpredictable and unreliable — giving false information and acting strangely toward users. I’ve been using A.I. tools like ChatGPT almost daily for several months now, and I’ve seen them spit out plenty of wrong answers.     1     Here are three things that A.I. is especially good at.

Getting creatively unstuck

A. I. can also be a good tool for getting your creative juices flowing. Recently, I was trying to come up with questions to ask a podcast guest. I pasted the guest’s bio into ChatGPT and asked it to give me “10 thoughtful, incisive interview questions” for this person.     2    

Ethan Mollick, a professor at the University of Pennsylvania’s Wharton School, recommends using A.I. to overcome writer’s block, or get a running start on hard projects.

    3    

I’ve also been using ChatGPT and other A.I. apps as a kind of rehearsal for offline tasks I find unpleasant or hard.

When I had to have a difficult conversation with a friend, I asked ChatGPT to take part in a role-playing exercise. “Pretend you’re my friend, and react the way you think my friend might react,” I told it.     4     It didn’t make the real one painless, but I felt more confident knowing I’d already practised with a chatbot.

Of course, A.I. chatbots can’t replace human friendships. But they can be a kind of on-demand sounding board, offering us basic feedback and advice without judgement.

Sparking Notes for everything

    5     I’ve used A.I. programs to “read” long articles for me, and summarize dense academic papers. Usually they get the key points right, even if some of the details are missing. If you’re bored of reading this article, you could ask ChatGPT to summarize it for you. I promise I won’t be offended.

9 . In today’s digital era, social media users are increasingly coming across fake news online. This leads to the pressing issue: What causes people to fall for misinformation on the Internet?

According to researchers at the Penn State College of Information Sciences and Technology,   users can easily fall into an echo chamber (回声室)—a sort of virtual space where users consume only one-sided news, eventually distrusting any opposing views. “We all tend to agree with the group opinion. Hence, people naturally get together with others who hold the same opinion,” said Dongwon Lee, one of the researchers. “But if you’re not cautious, there is a high risk of falling into an echo chamber.”

To prevent this phenomenon, the researchers have crafted a novel tool, a game named ChamberBreaker, to help players resist echo chambers and reduce the rate of fake news spread. The fundamental approach employed by ChamberBreaker centers around a decision-making procedure that mirrors the creation of echo chambers. In ChamberBreaker, a player is tasked with trying to have community members fall into an echo chamber. To begin, the player is randomly assigned a situation that focuses on a health, political or environmental issue, and is presented with six pieces of news on that topic. Then, the player selects news that could cause the other members to fall into an echo chamber while at the same time maintaining their trust. If successful, the community members will fall into an echo chamber and the player will witness the resulting negative effects on the community.

After developing ChamberBreaker, researchers tested it with over 800 subjects to see if it raised awareness of echo chambers and changed news consumption behaviors. The researchers found that those who played ChamberBreaker were significantly more likely to state their intention to observe online information from more diverse perspectives and showed an increased awareness of the echo chamber phenomenon.

Ultimately, the researchers hope that their methodology can excite a greater interest in the scientific and scholarly study related to information consumption. The application of tools like ChamberBreaker, which focuses on fostering analytical reasoning, may lead us towards a more informed online community.

10 . This question has fascinated behavioural scientists for decades: why do we give money to charity?

The explanations for charitable giving fall into three broad categories, from the purely altruisic (利他的)— I donate because I value the social good done by the charity. The “impurely” altruistic— I donate because I extract value from knowing I contribute to the social good for the charity. And the not-at-all altruistic— I donate because I want to show off to potential mates how rich I am.

But are these motives strong enough to enable people to donate as much as they would want to? Most people support charities in one way or another, but often we struggle to make donations as often as we think we should. Although many people would like to leave a gift to charity in their will, they forget about it when the time comes.

Many people are also aware that they should donate to the causes that have the highest impact, but facts and figures are less attractive than narratives. In a series of experiments, it was found that people are much more responsive to charitable pleas that feature a single, identifiable beneficiary(受益者), than they are to statistical information about the scale of the problem being faced. When it comes to charitable giving, we are often ruled by our hearts and not our heads.

The good news is that charitable giving is contagious—seeing others give makes an individual more likely to give and gentle encouragement from an important person in your life can also make a big difference to your donation decisions— more than quadrupling them in our recent study. Habit also plays a part— in three recent experiments those who volunteered before were more likely to do donate their time than those who had not volunteered before.

In summary, behavioural science identifies a range of factors that influence our donations, and can help us to keep giving in the longer term. This is great news not just for charities, but also for donors.