She skateboards to work, has a skydiving license, and was the world’s youngest self-made female billionaire. Journalist Zing Tsjeng and BBC Business Editor Simon Jack tell the story of Lucy Guo and trace her trajectory to becoming one of the tech titans. From dropping out of college to join Peter Thiel’s Fellowship, to couch-surfing as a millionaire, they follow Lucy Guo's journey to found Scale AI, a company that trains artificial intelligence for giants like OpenAI’s ChatGPT, Google, and Microsoft.

Good Bad Billionaire is the podcast that explores the lives of the super-rich and famous, tracking their wealth, philanthropy, business ethics, and success. There are leaders who made their money in Silicon Valley, on Wall Street and in high street fashion. From iconic celebrities and CEOs to titans of technology, the podcast unravels tales of fortune, power, economics, ambition and moral responsibility. Simon and Zing put their subjects to the test with a playful, totally unscientific scorecard — then hand the verdict over to you: are they good, bad, or simply billionaires?

Here's how to contact the team: email goodbadbillionaire@bbc.com or send a text or WhatsApp to +1 (917) 686-1176. Find out more about the show and read our privacy notice at www.bbcworldservice.com/goodbadbillionaire