2 . Heads or Tails?

Careful: It’s not 50-50

The phrase “coin toss” is a classic synonym for randomness. But since the 18th century, mathematicians have _________ that even fair coins tend to land on one side slightly more often than the other. Proving this tiny bias, _________, would require hundreds of thousands of carefully recorded coin flips, making laboratory tests a logistical (后勤的，组织协调的) _________.

František Bartoš, currently a Ph.D. candidate studying the research methods of psychology at the University of Amsterdam, became interested in this _________ four years ago. He couldn’t _________ enough volunteers to investigate it at first. But after he began his Ph.D. studies, he tried again, recruiting 47 volunteers from six countries. Multiple weekends of coin flipping later, including one 12-hour marathon _________, the team performed 350,757 tosses, breaking the previous record of 40,000.

With one side initially upward, the flipped coin landed with the same side facing _________ as before the toss 50.8 percent of the time. The large number of throws allows _________ to conclude that the nearly 1 percent bias isn’t a fluke (侥幸). “We can be quite sure there is a bias in coin flips after this data set,” Bartoš says.

The leading theory explaining the _________ advantage comes from a 2007 physics study by Stanford University statisticians, whose calculations predicted a same-side bias of 51 percent. From the moment a coin is launched into the air, its entire track — including whether it lands on heads or tails — can be calculated by the laws of __________. The researchers determined that airborne coins don’t turn around their symmetrical axis (对称轴); __________, they tend to move off-center, which causes them to spend a little more time high in the air with their initial “up” side on top.

For day-to-day decisions, coin tosses are as good as random because a 1 percent bias isn’t __________ with just a few coin flips, says statistician Ameli, who wasn’t involved in the new research. Still, the study’s conclusions should eliminate any lasting doubt regarding the coin flip’s slight bias. “This is great experiment-based evidence __________ the bias,” she says.

It isn’t difficult to prevent this bias from influencing your coin-toss matches; simply __________ the coin’s starting position before flipping it should do the trick. But if your friends are __________ the tiny bias, you may as well benefit from your slight advantage. After all, 51 percent odds beat a casino’s house advantage. “If you asked me to bet on a coin,” Bartoš says, “why wouldn’t I give myself a 1 percent bias?”

3 . Facing AI extinction

In a recent White House press conference, press secretary Karine Jean-Pierre couldn’t suppress her laughter at the question: Is it “crazy” to worry that “literally everyone on Earth will die” due to artificial intelligence? _________, the answer is no.

While AI pioneer such as Alan Turing cautioned that we should expect “machines to take control”, many contemporary researchers _________ this concern. In an area of unprecedented growth in AI abilities, why aren’t more expects weighing in?

Before the deep-learning revolution in 2012, I didn’t think human-level AI would emerge in my lifetime. I was familiar with arguments that AI systems would insatiably seek power and resist shutdown — and obvious _________ to humanity if it were to occur. But I also figured researchers must have good reasons not to be worried about human _________ risk (x-risk) from AI.

Yet after 10 years in the field, I believe the main reasons are actually cultural and historical. By 2012, after several hype cycles that didn’t pan out, most AI researchers had stopped asking ‘what if we succeed at replicating human intelligence’, _________ their ambitions to specific tasks like autonomous driving.

When concerns resurfaced outside their community, researchers were to quick to dismiss outsiders as _________ and their worries as science fiction. But in my experience, AI researchers are themselves often ignorant of arguments for AI x-risk.

One basic argument is by analogy: humans’ _________ abilities allowed us to out-compete other species for resources, leading to many extinctions. AI systems could likewise deprive us of the resources we need for our survival. Less _________, AI could displace humans economically and, through its powers of manipulation, politically.

But wouldn’t it be humans wielding AIs as tools who end up in control? Not necessarily. Many people might choose to deploy a system with a 99 per cent chance of making them phenomenally rich and powerful, even if it had a 1 per cent chance of _________ their control and killing everyone.

Because no safe experiment can definitively tell us whether an AI system will actually kill everyone, such concerns are often dismissed as unscientific. But this isn’t an excuse for ignoring the risk. It just means society needs to reason about it in the same way as other complex social issues. Researchers also emphasize the difficulty of predicting when AI might _________ human intelligence, but this is an argument for caution, not complacency.

Attitudes are changing, but not quickly enough. AI x-risk is admittedly more _________ than important social issues with present-day AI, like bias and misinformation, but the basic solution is the same: regulation. A robust public discussion is long overdue. By refusing to engage, some AI researchers are neglecting _________ responsibilities and betraying public trust.

Big tech sponsors AI ethics research when it doesn’t hurt the bottom line. But it is also lobbying to exclude general-purpose AI from E. U. regulation. Concerned researchers recently called for a(n) _________ in developing bigger AI models to allow society to catch up. Critics say this isn’t politically realistic, but problems like AI x-risk won’t _________ just because they are politically inconvenient.

This brings us to the ugliest reason researchers may dismiss AI x-risk: funding. Essentially every researcher (myself included) has received funding from big tech. At some point, society may stop believing reassurances from people with such strong conflicts of _________ and conclude, as I have, that their dismissal betrays wishful thinking rather than good counterarguments.

5 . At first, the grains of rice that Ingo Potrykus held in his fingers did not seem at all _________, but inside, these grains were not white, as ordinary rice is, but a very pale yellow — thanks to beta-carotene (胡萝卜素), a building block for vitamin A.

For more than a decade Potrykus had _________ creating a golden rice that could improve the lives of millions of the poorest people in the world, strengthening their eyesight and their _________ disease.

_________ imagining golden rice was one thing and creating one quite another. Year after year, Potrykus and his colleagues ran into one _________ after another until success finally came in the spring of 1999.

At that point, he tackled an even greater challenge. The golden grains _________ pieces of DNA borrowed from bacteria and flowers. It was what some would call Frankenfood, a product of genetic engineering. As such, it _________ a web of hopes and fears.

The debate began the moment genetically engineered crops (GM crops) were first sold in the 1990s, and it has _________ ever since. First to start major protests against biotechnology were European environmentalists and consumer-advocacy groups. They were soon followed by their U.S. counterparts (相对应的人事物).

The hostility is _________. Most of the GM crops __________ so far have been developed to produce a plant that is not harmed by chemicals used to kill weeds (杂草) in the fields. These genetically engineered crops are often sold by the same large, multinational corporations that __________ the weed-killing chemicals that farmers spray on their fields. Consumers have become suspicious (怀疑的).

The benefits did seem small __________ golden rice was developed. It is the first strong example of a GM crop that may __________ not just the farmers who grow it but also the consumers who eat it. In this case, those include at least a million children who die every year because they are weakened by vitamin-A deficiency (缺乏) and an additional 350,000 who go blind.

Many people __________ poverty and hunger look at golden rice and see it as evidence that GM crops can be made to serve the greater public good. They see a critical role for GM crops in feeding the world’s ever-increasing population. As former U.S. President Jimmy Carter put it, “Responsible biotechnology is not the enemy; __________ is.”

Instagram Concerns

Although the popular social media APP Instagram can be used in many positive ways, there are significant risks to your child that all parents should be aware of.

Many Instagram users are known for their perfectly posed and edited photos of delicate life. The line between reality and what is posted on social media is often vague. Teens often find it impossible not to compare their appearance, belongings, status, and lifestyle to the lives of those they follow. It is so easy for a child to become consumed by this constant comparison. If your child has gathered a large Instagram following or does not have proper settings turned on, shared information may be public for all to see. Although content showed in your child's Instagram feed is tailored toward their browsing history and interests, it is possible they could encounter potentially inappropriate subject matter.

Feeling concerned or worried? Rather than banning your child from the platform entirely, you might consider the following:

When a child spends too much time viewing life through the images of others, they can forget to take the time to truly live their own life. Encourage your child to incorporate plenty of screen-free and Instagram-free time into their daily lives. One way you can influence your child to develop a healthy relationship with social media is by demonstrating one yourself. Set aside your own screen-free time each day. Also, it is crucial that, as a parent, you understand your child's social media presence and have open and honest conversations about the dangers of self-comparison and oversharing on Instagram. If you notice your child is constantly experiencing the side effects of Instagram-despite your best efforts-take the steps necessary to protect your child. For some, this may mean locking the app on your child's phone until a compromise can be reached.

7 . Armed with a toolkit of techniques and tricks to calm the mind and bring focus back to your body, you can stop stressful situations from sabotaging your day, says Katy Georgiou.

Making contact with the ground is your baseline go-to response for stress. This technique can be especially helpful if you find your stress regularly turns into panic. Wherever you are, whatever you’re doing, place your feet flat on the ground so that you feel stable, and then close your eyes. If you’re able to sit on the floor cross-legged or to lie down flat, then even better.

Think of this as earthing: really connect with the ground beneath your body. Some studies suggest that this simple act can help reduce or relieve symptoms of stress such as pain and fatigue, reduce blood pressure, and improve sleep. If you’re feeling disconnected from the world, it can also remind you that you belong to it and are a crucial part of it — the ground will always be there for you.

Adopting regular, daily or weekly routines for self-care can be very containing, creating consistency amid all sorts of stressful life events happening around you. Looking in the mirror each day can actually remind you that you exist, so feel free to factor some reflective gazing into your daily routine, whether it’s while applying moisturiser, shaving, or brushing your hair. Studies have shown that being confronted with your reflection can have powerful effects, taking us out of our heads and into the immediate present. For added effect, pay attention to the way your products interact with your hair and skin as you apply them.

Playing around with smells, colours and textures in your hands will also engage your senses. Using a scented shampoo or smoothing on body lotion after a warm bath can be easy ways to do this.

Abandon all your thoughts and try to focus only on your surroundings. What can you see, hear, smell, taste and touch? Identify three things you can hear, one thing you can taste, four things you can see and two things you can feel on your skin. Pick out colours in the room you are sitting in, notice textures and different kinds of light. If somebody is with you, tell them what you are experiencing. The point here is that your senses are your best and easiest route back to feeling calm, by coming out of your head and rooting yourself back in the present. This is incredibly helpful if you’re having a panic attack or flop response.