″The last person I dated seriously was Janet Yellen, who is the current Secretary of the Treasury,” says former tech executive William Raduchel about 40 minutes into our lunch. I’d asked about his family life, a topic of conspicuous absence in his autobiography, The Bleeding Edge: My Six Decades at the Forefront of the Tech Revolution. This wasn’t the answer I expected. It was “50 years ago and we were 20-something. We had a lot of good times and we’re still friends.”

There are several reasons Raduchel, 78, gives for his bachelor status but the crux is work. From the 1980s to the early 2000s, he was in the C-suite at the companies that were the Nvidias and Facebooks of the day. He was on the chief executive’s staff at Xerox, chief strategy officer of Sun Microsystems, and finally chief technology officer at AOL around the turn of the millennium.