The Peter Thiel-backed company that plans to stage an Olympics-style event in which athletes are encouraged to use performance-enhancing substances is in talks to raise around $300 million ...

Peter Thiel, former PayPal CEO, suggested that the rise of AI could reduce the societal emphasis on math proficiency, leading to a long-overdue rebalancing in how abilities are valued.

Mr. Thiel, the Silicon Valley billionaire, is coming around to Donald Trump’s candidacy again after bumps in their relationship. But he thinks his money wouldn’t really help Trump.