3 . As an engineer, building things was Liang Kaiyu’s hobby in his spare time. When he saw that a foreign engineer had developed an autonomous e-bike, he decided to build one himself. But when testing his self-built automatic electric motor in January 2020, an explosion occurred, and he lost his left leg below the knee. About two months after the accident, he got his prosthetic limb (假肢).

On short-video platforms, Liang saw many people with physical challenges who live no differently from other people. They ride bicycles, dance and even ski, using their prosthetic limbs. Inspired by them, Liang started to post videos about his daily life to inspire more people. Since then, he has used his engineering skills to make his prosthetic limb more comfortable and powerful than a real leg.

He tried to upgrade his high-tech prosthesis, including fitting a shock absorber and putting in a charger port. One of the latest upgrades is the addition of colored LED lights to his running blade. The LED lights can be connected via Bluetooth to a smartphone and change color as they react to music. Through design, modeling and manufacturing, he made a device that can connect the socket (承窝) of the leg with the prosthetic knee. With the small device, he can take the leg off in one second. Moreover, to better learn about the structure and system of the prosthetics, he took apart some secondhand prosthetic limbs that were made in China and abroad, which cost him a lot of money.

“These high-tech prosthetics are comfortable and safer to wear. They can boost confidence with every step. But the only thing is that the cost is unaffordable for most families,” Liang says. He adds that due to the small group of consumers, there are few companies in China investing in the research and development of such prosthetics. To advance functional performance and help amputees (截肢人士) maintain or regain their freedom of movement, Liang has provided his experience and suggestions for several prosthetics companies.

“If there is a good opportunity, I want to make high-tech prosthetics accessible and affordable to more amputees in China,” Liang says.

4 . I’m a grandma in my 60s. In the spring of 2020, like the rest of the world, I spent a lot of time staring at a screen and that was when I first got into the YouTube world. I discovered that onscreen offerings were truly endless. From one YouTuber I learned how to plant my own vegetable garden. Someone else shared poetry from Robert Frost, wise sayings from Confucius, and a smattering (一知半解) of other philosophical viewpoints, all of which helped me through some dark days. Down the rabbit hole I went, scrolling for hours and hours, watching other people living their lives and giving me advice on how to live mine.

As the months rolled by, YouTube turned my attention away from the hard reality of what was going on in the world. I subscribed to several channels and waited anxiously for new weekly offerings. I watched people reading poetry or painting by streams or looking out windows into snowy landscapes. I found all this calming. Such lovely scenery, such beautiful background music, such pretty clothes they were wearing!

At some point though, I got upset by these artistic and seemingly perfect lives. Who is filming them? I wondered. Do they rehearse or just act on the spot? Isn’t it cold, stepping through snowbanks in dresses? The questions kept bothering me while forcing comparisons to my own somewhat more ordinary existence. I wanted to walk in a flowing dress through hilly green field filled with wildflowers! Instead, I was marching through my neighborhood’s city streets in mom jeans.

In a moment of insight, I realized that I had a full and happy life, which although it wouldn’t win awards for perfection onscreen, suited me perfectly. I put my phone away and started paying attention to my own life instead of watching other people live theirs. I still like checking in once in a while. YouTube can be a rich source of entertainment and inspiration, but I’ve limited my exposure. I am content with the knowledge that my addiction to life onscreen has been replaced by life itself.