An employee told me he was quitting to join OpenAI in 2016. I said it was a bad idea. Now he's an AI billionaire.

ANTHONY WALLACE/AFP via Getty Images

• Jack Clark was a reporter at Bloomberg when I was an editor there.
• He told me he was quitting to join OpenAI in 2016.
• I told him that was a terrible idea. The rest is history.

In 2016, Jack Clark walked up to me in Bloomberg's San Francisco newsroom and asked if we could go for a walk. As an editor, it's often not good when one of your reporters makes a request like this.

Sure enough...