Oh boy. New coworker really likes to hear herself talk. We were just in a meeting, where I said "We don't usually use that wide of a date range because of panel churn." Coworker felt the need to pipe up and add "Yeah, because the panel has a lot of changes, all the time. Someone who is in the panel one day might not be next week, or..." for 5 minutes. Even the CEO couldn't stop stop her from talking, even though he was tried a half dozen times. Jeez lady, shut up! Explaining an idea when no one was confused by the summary is just annoying.