I used to think that personality was directly a product of one's experiences. Despite the fact that I took a biology course in high school, not once did the role of genetics in determining personality come up! Although the book clearly states that the role of genetics in personality is indirect, it is fascinating to me to think that my extroverted-ness or openness to new experiences is somehow related to my parents having those same tendencies. It's also a relief, seeing as i'm sure i will one day be a parent, knowing that babies come into this world with a predisposition to certain personality traits, meaning you can't screw your kids up too much! Also, I have always been a firm believer in the myths about birth order and having a "first born" vs. "second born" personality because I see a lot of those stereotypical tendencies in my sister and I. But the book has convinced me that it isn't true!

It truly is fascinating to think about the origins of peoples' personality traits. I thought the chapter in our book did a good job at breaking it down; however, there is still a lot to learn in this department. For example, the claim that there is a "first born" and "second born" personality could exist but it’s more likely that the external factors (environmental) play the role of developing certain characteristics in personality such as a first born being more responsible because he/she grew up having to care for their younger siblings. On the other hand, the youngest child may develop a more rebellious personality because they were tied down by more rules set by the parents. These are just some scenarios I came up with and there are many more that could explain why children act differently in respect to the order they were born. I am not sure if Psychology will ever be able to give exact answers to this debate, or any other subject in personality for that matter, due to the multi variable world that we live in.