I've been writing since before I could write. As a kid, I dictated stories to my parents. About 12 years ago, I was living in New York City and pursuing a master's degree in creative writing. For years I'd been suffering vision disorder, but in New York my symptoms worsened. I became unable to read or write for any considerable length of time. I tried vision therapy, an overhead projector, a special pair of glasses — all in vain.

Eventually, I discovered a computer program for the visually challenged. As I typed, my words were read aloud by an automated voice. With my screen dimmed (变模糊) to black, I relied entirely on the automated voice to know what I had written.

Facing the blank page is worrying, but facing the black page is worse. The dark screen is a sinkhole that swallows creative hope. Sentences disappear into it like an astronaut into a black hole. I managed to complete

my master's degree, but it took me years to adapt to my new reality. The greatest barrier seemed to be the automated voice, which was like a robot parrot on my shoulder, and I wanted nothing more than to drive it away. If a pianist were forced to practice on an untuned piano, would it corrupt his ear over time?

Of course, I could have quit writing and stopped making myself suffer. But it honestly never occurred to me—and I'm glad it didn't. Last year, after I told my story on the radio, I was contacted by VocaliD, a Massachusetts-based company that created a voice modeled on my own.

The first time I heard the voice they created, it is so close to my own that the two are nearly indistinguishable. I've only just begun using this new voice. My hope is that this will restore a sense of solitude (孤独) to my writing process, allowing me easier access to that inner space where the imagination can take over, and I can forget myself, and the real work can begin.

The black screen still exists — it always will — but the robot parrot has taken wing.

A new trend has popped up in China with many young people abandoning brand (品牌) names to create makeshift handbags out of things like reusable grocery bags and other materials. One example is the Shenzhen bag, which includes canvas (帆布) bags, paper bags, milk tea packages that people carry around in Guangdong Province.

Makeshift handbags like the "Shenzhen bag" are also common among young people in big cities like Beijing, Shanghai, and Hangzhou. People find the bags practical, wearable and fashionable, and they can be carried on the shoulder or the back. This emerging trend reveals a new attitude to consumption as young people in China begin to pursue a simple and shared life, with consumers no longer blindly pursuing brand names as a status (身份) symbol, but advocating a simple and low-carbon lifestyle. In addition to the handbags, and regardless of their monthly incomes, many young people are living more casually, in line with a "good enough mentality". Loose T-shirts, Crocs, and canvas bags are basically standard mode.

"Consumers today are becoming more mature and rational. They are pursuing smarter consumption through careful consideration and calculation to find the cheapest; most practical, cost-effective way of shopping," says. Wang Ning, a sociology professor at Nanjing's Southeast University.

Economists believe that China's Generation Z no longer blindly pursues brands and luxury goods or buys things for brand name and status. Instead, they pay more attention to their actual needs, quality, and experience of buying, and prefer sharing and secondhand purchases. They also advocate environmental protection and sustainable consumption.

Price-aware Chinese consumers have also begun to place a greater emphasis on their inner selves. Driven by rational consumption, many young people no longer save to buy a brand-name bag, but for self-improvement.

The new handbag trend has also created business opportunities. Reusing packaging used for food brands as handbags results in mobile advertising for the associated brands, and the phenomenon of the "Shenzhen Bag" has also benefited paper bag companies.

When you go running in the woods in your running tights, elastane (氨纶) is the reason why they fit you so comfortably. Elastane is an elastic material that allows the fabric to stretch and adapt to your body.

But when elastane fibres are mixed with cotton, wool, nylon or other fibres, as is the case in many clothes today, the clothes become almost impossible to recycle. It is extremely difficult to separate out the different fibres, and therefore the materials in the clothes cannot be recycled.

But this may change, says Assistant Professor Steffan Kvist Kristensen from the Interdisciplinary Nanoscience Center at Aarhus University. Together with a number of colleagues, he is behind a new technology that can separate out fibres in mixed fabrics.

"We've developed a method to remove elastane completely from nylon. We're not quite there yet with cotton, because some of the cotton fibres are broken down in the process. But we believe that, with some minor adjustments, we can solve this problem," he says. 

It is not easy to separate elastane and other fibres once they have been woven(编织) together. Clothes are made by winding the main fibres, such as nylon or cotton, around the elastane fibres, which consist of long chains of molecules (分子). The fibres only break apart if we break the long chains of molecules, explains Steffan Kvist Kristensen.

By heating the clothes to 225 degrees Celsius and adding a specific alcohol, the researchers have found a method to break down the bonds in elastane chain. When this happens, the chains fall apart and the materials separate. "The whole process takes place in what is in effect a large pressure cooker that we feed the clothes into. We then add a little alcohol and a potassium hydroxide(氢氧化钾) base and heat it up. Then we let it cook for just over four hours, and when we open the lid again, the different fibres will have been separated." says Steffan Kvist Kristensen.

So far, Steffan Kvist Kristensen and his colleagues have only experimented with two nylon stockings at a time. The technology is therefore not yet ready for application at industrial scale.