Zhang Yiming: TikTok’s tech boss

How did an unassuming software engineer become one of the richest people on the planet? This is the story of how Zhang Yiming transformed social media by creating TikTok, and how the Chinese tech company ByteDance became a multi-billion dollar business. BBC business editor Simon Jack and journalist Zing Tsjeng explore Yiming’s various successes with different apps before he hit the jackpot with TikTok. Then they decide whether they think he’s good, bad, or just another billionaire.