Constructive controversy : theory, research, practice

""NO! NO! NO! NO!" yelled one artist to another as he viewed what the other had painted during the day. "You do not understand! This is not what we are trying to do!" "It is you who do not understand!" the other replied. "This is what we talked about this morning!" "This is exactly what we are trying to achieve!" Such heated discussions were common between two of the greatest painters of the early 20th Century. They had an intense creative collaboration filled with conflict. They dressed alike, in mechanics' clothes, and jokingly compared themselves to the Wright brothers (Orville and Wilbur). From about 1908 to 1912, they saw each other almost every day, talked constantly about the revolutionary new style they were developing, and painted as similarly as possible. Many of their respective works from those years were indistinguishable. In many cases, only art experts could or can distinguish between a painting by one or the other. They were deeply committed to their goal of creating a new style. Usually, they would meet for breakfast to discuss what they planned to paint during the d"--