I'm a graduate student in transportation, working on mathematically modeling congestion and applying said model to calibrate how sensitive drivers are to differences in travel time between routes for microscopic traffic simulations. I'll be finishing up at the end of the semester, though. There's a lot of things I'd like to do, but if the question means to ask what I'd like to do for a living, it's difficult to answer, since I don't really have consensus. Part of me would like to continue in transportation applications, more specifically in vehicle to vehicle or vehicle to infrastructure integration, maybe driverless cars eventually. More realistically I'd like to do mathematical based stuff that improve people's lives, preferably in a position that allows me the free time to do what I want and in an area that I'd like to live in. While I have some idealist views with what I'd like to accomplish, a significant part of me wants to enjoy the activities and people that I enjoy - music, writing, reading, taking math tests for fun, watching movies, etc. I don't think I pursue any of those activities passionately enough to try to turn any of them into a career, but I definitely compromise my idealism with my personal enjoyment.