When it comes to technology, Shenzhen may well be the most fascinating city in the world. It makes the majority of our electronics. It clones the best technology Silicon Valley has to offer with ease. And, these days, Shenzhen buzzes with new ideas and an unrivaled energy that ensure it will play a major role in shaping our collective futures.

In this episode of Hello World, journalist Ashlee Vance heads to the spectacle that is Shenzhen to experience it firsthand. The results are equal parts inspiring and disconcerting as tech-fueled entrepreneurs try to navigate an authoritarian regime.