For my topic proposal I choose the subject on way the main reason people laugh is when they are surprised. I agree because according to many sources of text people are proven to laugh when something happens out of the ordinary. People don’t expect anything out of the ordinary to happen so when something does occur that is not normal their first reaction is to laugh. I want to support this idea of the main reason people do laugh is because they are surprised. There are many different types of evidence presented to support this theory. Some examples of evidence include going back to the primitive ages, your first laugh as a baby, and a scientific study. The evidence begins with talking about the generally accepted notion of evolutionary expansion the evidence is then supported with an example story. The next evidence presented is with a story of when you were first a child and you had your first laugh. Another piece of evidence describes an experiment performed on brain patterns. The final evidence given talks about the classic joke structure which makes people laugh. The author presents himself as trustworthy by supporting his evidence and his argument with examples of why people would laugh in certain situations. The writer also gave evidence not only by describing scenarios but by also proving scientifically the main reason people laugh. By having these explanations supported by all this evidence it is clear why the reason people do laugh is because they are surprised.