I listened to a Cartalk or maybe This American Life segment many years ago that asked the question “Are two people talking about something they do not know anything about better or worse off after talking about it?”

The consensus was that the downside risk is the two people coming to various conclusions even though they knew nothing about it simply due to our cognitive biases and how we interact with each other. Therefore, two people talking about something they do not know anything about might very well be worse off than had they not talked about it at all.