Can AI go underwater?

What do motorcycles, letters from overseas, and university campuses have in common? On the surface, nothing. But dig a little deeper, and nothing is truly separate. The Full Circle finds that connection. On the show: Steve, Yushan & Yushun

The UK just passed a radical ban: no tobacco for anyone born after 2008. Meanwhile, Chinese cities like Shenzhen and Hong Kong are using AI and other technologies to police public smoking, all in the name of clean air. Gen Z is becoming the first "nicotine free generation." But even if laws really can kill addiction, where do we draw the line between protecting health and policing choice? On the show: Steve, Yushan & Yushun

Think about something you held onto for too long. A job, a project, a goal that just wasn't working. We all love stories about people who never gave up, but staying with the wrong thing can drain years from your life. So how can we know when it's time to let go? On the show: Fei Fei, Steve & Yushun

AI doesn't just eat data. It devours power, water, and land. So what happens when you run out of all three? China answered by going underwater. Off Shanghai, one of the country's first commercial ocean-floor data centers has gone live. It is powered by offshore wind and cooled by the sea itself. Could it be a smart solution to the world's data center controversy? On the show: Fei Fei, Steve & Yushun

How did Chinese migrants send money and messages home before phones or banks existed? They did not click send. Instead, they handed cash and letters to couriers who crossed the sea on faith alone. It was not fast, but it somehow worked. We're talking about Qiaopi, a forgotten system that connected families when nothing else could. / Would you take a lot more money for a lot more loneliness (14:25)? On the show: Steve, Yushan & Xingyu

You share a room, you share the space, and you might even share the chores. But what happens when your roommate starts running a business from the top bunk? In China, some students are launching side hustles right from their dorms. But when does a side gig start to cross the line? On the show: Steve, Yushan & Xingyu

Tourists wander into lecture halls. Students grumble about lost seats. All because one university in China decided to open its campus to the public. Suddenly, a simple question becomes complicated: who actually gets to use a university? On the show: Steve, Fei Fei & Niu Honglin.

There comes a moment when the person who taught you to tie your shoes asks you how to open an app. For many young people, that moment repeats itself. Teaching parents to use phones, avoid scams, and navigate apps has become part of family life. It's not just about technology. It's about patience, role reversal, and watching the people who raised you grow older. On the show: Steve, Fei Fei & Niu Honglin.

Gen Z in the United States has taken up a new self-care hobby. For those who suffer from anxiety, people are packing small comfort bags to help them get through a tough moment. Smart planning, or a touch of self-indulgence? On the show: Steve, Fei Fei & Yushan

Flood season is hitting harder than ever. This year, China isn't just waiting for disasters to happen. It's seeing them coming. Faster warnings. Smarter tech. Less guesswork. The fight against extreme weather is getting an upgrade. On the show: Steve, Fei Fei & Yushan