Here’s how it went down: Schmidt, Isaacson and Smith were onstage together for a panel called “How Innovation Happens.” One of the recurring themes of their hourlong talk was diversity in tech, and how the U.S. government and companies like Google can get more women and minorities involved.

Both men interrupted Smith several times — not unusual for moderated panels — but Williams felt it was particularly poignant given the day’s topic of diversity. During a Q&A session with the audience, Williams, who is Google’s Global Diversity and Talent Programs manager, asked both men if they thought their interruptions were a sign of the unconscious bias they themselves had been talking about.

“Given that unconscious bias research tells us that women are interrupted a lot more than men, I’m wondering if you are aware that you have interrupted Megan many more times,” she asked, which immediately prompted a round of cheers and applause from the packed room.