Topic Reading-Vol.5202-7/22/2026

Dear MEL Topic Readers, 

People are making wildfire bets on prediction markets. Experts say it could lead to disaster

Recently, a US president’s teleprompter operator was put on unpaid leave for suspicion of making more than $100,000 by placing bets on the president’s speeches on a prediction market platform. At a prediction platform like Polymarket or Kaishi, participants buy and sell contracts tied to the outcomes of future events. Think of a question like if it will rain tomorrow in New York. If the market price for the “yes” contract is trading at $0.35, representing a 35% chance of rain, you can bet $35 for 100 “yes” contracts, for example. If it rains, the contract settles as $1 per share, and your 100 shares are now worth $100, giving you a $65 profit. If it doesn’t rain, you’ll lose the $35 you bet. This is an innocent and harmless case, but imagine a contract about an ongoing wildfire, like “Will it be contained by next week?”, or “Will it reach the neighboring town?”. Is it ethical to bet on other people’s lives or properties? Also, experts worry that it could provide a financial incentive for wrongdoing, such as arson or sabotage. Do you want to predict how much prediction markets will grow this year?

Read the article and learn about the online prediction market.

https://edition.cnn.com/2026/07/17/climate/betting-wildfires-polymarket-prediction-market-platforms

Topic Reading-Vol.5201-7/21/2026

Dear MEL Topic Readers, 

Don't panic - five ways to stop your kids' endless scrolling

Excluding schoolwork, US teenagers spend as long as eight hours a day on entertainment and social screentime, and about half of them spend four hours or more on social media, such as YouTube, TikTok, and Instagram. That’s way too long for growing kids who should be engaged in real, face-to-face social activities, such as playing sports and hanging out with friends. But they want to keep up with rapidly changing fads and trends on social media. Also, auto-play and infinite scrolling glue their eyes to the display. Last December, Australia banned under-16s from using major social media services. Also, the EU is advancing region-wide legislation to restrict social media use for minors. Instead of just banning or restricting the use of social media help kids reduce gazing at and scrolling on smartphones, experts suggest some tips for parents to help their children reduce their screentime. The question is whether parents guide their children on how to use the smartphones they have grown up with?

Read the article and think about how long is too long for children to use smartphones.

https://www.bbc.com/news/articles/c86e3q5j992o

Topic Reading-Vol.5200-7/20/2026

Dear MEL Topic Readers, 

What happens to your brain in space?

In space where gravity is close to none, our body functions deteriorate. Muscles quickly weaken and shrink because they no longer have to fight Earth’s gravity to maintain posture or move around. Bones quickly lose density without the mechanical stress of weight-bearing. That’s why astronauts in the International Space Station (ISS) need to exercise rigorously for two hours each day to maintain their body functions. Still, their faces get rounder in space without gravity to pull blood and other bodily fluids downward. Then what will happen to the brain in microgravity if you stay for months? Research shows that the parts of the brain that control movement, balance, and body awareness physically adapt to microgravity, just as other parts of the body do. For a round-trip to Mars, it takes six to nine months for each one-way journey in microgravity and over a year in one-third gravity to wait for a launch window for Earth. For astronauts, it’ll be quite a challenge physically, cognitively, and mentally to live without gravity for a long time.

Read the article and learn how extraordinary a long stay in space is.

https://www.bbc.com/future/article/20260707-what-happens-to-your-brain-in-space

Topic Reading-Vol.5199-7/19/2026

Dear MEL Topic Readers, 

Japan is running out of royals. So why won’t it let women become emperor?

Before the current 126th emperor Naruhito took the throne in 2019, there were eight empresses in Japan’s 27-century-old imperial family. But in 1989, the Imperial House Law banned female emperors. Then in 1947, the imperial family was downsized to the immediate relatives of then Emperor Hirohito, abandoning 11 collateral branches. The current shortage of successors began from there because he had only two sons, one of whom had no children. Now, Emperor Naruhito is 66 years old and has just one daughter. His only brother is 60 and has two daughters and one son, who will turn 20 this September. Japan’s royal family members perform a variety of duties, such as attending state functions, public activities, and court ceremonies, but now they are done by fewer members because female members leave the royal family once they get married. Another serious issue is succession. There is only one male in the next generation of the current royal family. While the emperor's only child, Princess Aiko, is widely popular among Japanese citizens, conservative politicians and scholars dismiss the chance of creating an empress. So, how will the world’s longest royal family survive?

Read the article and learn about the existential problem of Japan’s royal family.

https://edition.cnn.com/2026/07/13/asia/japan-royal-crisis-women-emperor-ban-intl-hnk

Topic Reading-Vol.5198-7/18/2026

Dear MEL Topic Readers, 

'Once it's gone, it's gone': How to future-proof your hearing

You know how noisy electrified music concerts and sporting events are. Also, a gasoline-powered leafblower, lawnmower, and buzzsaw are too noisy for unprotected ears. Surprisingly, fresh air from the car window on a highway is noisier than you might think. In addition, many people listen to music through headphones all the time without realizing how loud it is to their ears. All these unnaturally loud sounds bend or break tiny hairs in the ear, whose motion is translated into electrical impulses that our brain interprets as sound. Unfortunately, once these hairs are damaged, they cannot be fixed or reborn, and therefore, the loss becomes permanent. That’s why listening to music through headphones for a prolonged period of time, and every day, would impair hearing ability without realizing it until later in life. It’s not just your eyes but your ears, too, that could be damaged by the screen and headphones.

Read the article and learn how hearing can be affected by loud sounds.

https://www.bbc.com/future/article/20260709-how-to-future-proof-your-ears

Topic Reading-Vol.5197-7/17/2026

Dear MEL Topic Readers, 

See if you can spot an AI deepfake with our test

Nowadays, photos taken by smartphones are usually edited or enhanced to some extent through intelligent systems to make them look clearer or more vibrant. AI deepfake technology can replace faces, manipulate facial expressions, and synthesize faces of individuals whose images have been shown on the web or shared online. The technology has become so advanced that deepfake photos are now hardly distinguishable. However, trained eyes can tell whether the images shown are real or fake in most cases, according to an international study conducted by Australian researchers. In the meantime, as AI is being trained with more data, it'll create more realistic deepfake images over time. Maybe only AI can distinguish real images from fake images.

Read the article and learn if and how humans identify AI deepfakes.

https://www.bbc.com/news/articles/c9d2wgvg55jo

Topic Reading-Vol.5196-7/16/2026

Dear MEL Topic Readers, 

Seven things you shouldn't do when eating in Italy

When in Rome, do as the Romans do, especially when it comes to what to eat and how to eat it.

Just like any other national or regional food, the culinary practices of Italian food are deeply tied to geography, history, and culture, and reflect the local environment and ingredients. Also, it is designed to be enjoyed in an orchestrated manner, starting with antipasto, followed by pasta, a main dish with seasonal vegetable side dishes, and dolce. Another important tip you want to know is that not all Italian food goes well together. For example, you do not want to sprinkle mountain-produced permesian over seafood. You also want to avoid ordering a rich, creamy cappuccino after lunch or dinner. Finally, expect your lunch or dinner at a restaurant to take hours because it is a social ritual. After all, you want to enjoy a meal rather than simply filling your stomach.

Read the article and learn how to avoid mistakes when you eat real Italian food.

https://www.bbc.com/travel/article/20260709-seven-things-you-shouldnt-do-when-eating-in-italy