Masayoshi Son's bold bets on tech defined an era. A new book asks if the SoftBank boss is a visionary or a gambler.

The man behind SoftBank has now teamed up with OpenAI to invest up to $500 billion in American AI infrastructure over the next four years.

Masayoshi Son is back on top. On January 22 ... a $40 billion investment in OpenAI at a $260 billion valuation. Your book came out the day the Stargate deal was announced. After the announcement ...

Tomohiro Ohsumi / Getty Images Masayoshi Son, founder and CEO of Japanese multinational investment company SoftBank Group, is one of the richest people in the world. Son recently announced SB ...

What can we learn from his past gambles? How real are his promises? Is he a visionary or reckless trend chaser? To understand the man behind Stargate, we talk to Lionel Barber, author of the new book ...

Billionaire Masayoshi Son has a vision for the future of the world. But what does that vision look like? Lionel Barber is the former editor-in-chief of The Financial Times and author of the book ...