1. The aim of these exercises is to show that a group working together will get a better result them if they would work alone.
2. Assume that you have 2 persons that need to explain or defend something to a group. person A is talking nonsense because he does not know what he is talking about but he is convinced about him being right and explains with a LOUD VOICE and a lot of CONFIDENCE. Person B is an expert in the matter and explains everything correctly, but he is a bit timid, and is not so confident while talking to the group. The result will be that person B will not be taking so serious as person A and the group will tend to believe what A said. At least that is my experience.
Greetings, Bart