This piece of writing was part of an article I’m writing, about how I would help someone answering the question of “what do I want to do”, where I discuss how to pick a major and what helps you to define the way you contribute to this world. I found the draft of the article to be very lengthy, I may expected the reader to be aware of different notions upfront, so I preferred this topic to be referenced here. As many of my drafts are pointing to it.