It's not necessarily about having that happen once though. That can happen the many times throughout the day, and 2-3 interruptions in one day can be a lot. I t

It's not necessarily about having that happen once though. That can happen the many times throughout the day, and 2-3 interruptions in one day can be a lot. I think a lot of the point of not doing open-plan is to engineer an environment where it happens less often. That being said, it's entirely possible that some tasks will require absolute focus and having a 2 minute conversation will legitimately lose you a large amount of productive time. There may also be a subset of people who are more likely to get these particular tasks, and those people will feel the negative effects of an open plan office much more than others working on more easily interruptible tasks.