I found three limitations in the experiment. The first limitation was that not too many participants passed the survey, which is why the result was not too equally right. For example, Grewal and Sahni (2019) found that this source had similar limitations as mine. If I do the experiment again, I am going to take 100 participants 50 boys and 50 girls to get more exact data. The second limitation was that we did not divide participants by age groups, and it can influence results because age can influence human reaction time. If I do this experiment again, I am going to take participants who are off the similar age. The third limitation was that I did not control how people took the reaction time test because people might not take the test in a quiet place, or they might be disturbed by something. Next time, if I want to repeat the experiment, I need to have a participant in front of me in an empty room in order to take the test.