To begin with emotion played a major for Kamen to work on the prosthetic arms, keeping in mind that he did not care for the situation until he spoke about the subject with Dr. Ling. Without emotion as catalyst to drive for Kamen to help the Veterans from the war Kamen would not have worked on the project to help the veterans because there would be no empathy. While speaking to Dr. Ling, Dr. Ling told him that the prosthetic arm has not been change ever since World War 2 which was unacceptable. Then as Kamen begin to actually design the arm, because of his empathy he had designed a prosthetic arm that could do the job and feel comfortable on the user. To sum everything up Kamen used the Emotion of empathy to design an efficient yet comfortable Prosthetic arm.
Furthermore if emotion was not a factor in the