Who is Sam Altman? The OpenAI boss and ChatGPT guru who is now one of AI's biggest players

Never mind Mark Zuckerberg and Elon Musk, Sam Altman looks destined to become Silicon Valley's next tech superstar. Here is a look back at the life of the man who has become the face of OpenAI's ChatGPT, and the key role he will continue to play in the development of AI.