This video featured a set of twins who have been separated at a young age. One was raised in a nurturing environment by her biological parents and was encouraged to pursue an education. On the other hand, the other was raised in a destructive environment with an alcoholic stepfather. The second never completed high school and was pregnant by age 17. The video highlights that, even though the twins experienced completely different upbringings (nurture in the argument of nature vs. nurture), the pair share a distinctly similar set of characteristics, such as the same preferences in colors and smells and the same fears. According to this video this is because we are attracted to things that are similar to us. Once we perceive some amount of similarity between us and someone else, it triggers an attraction thus a liking.