First, I would like to thank in advance to anybody who takes the time to read this and provide any feedback. Your help is greatly appreciated! I’m a first year undergrad and my passion is studying physics. I find myself 95% of the time looking up things that pertain to physics & science rather than engineering. My original intention was to pursue a B.S. in physics, however lately i’ve been second questioning that and have been entertaining the idea of a more vocational/practical degree, which thus leads me to engineering. I don’t really have any intentions of doing research in physics, and instead I plan on working in industry. I really want to partake in the advancement of the human race to be honest. I’m fascinated by the innovation in recent years, and want to be a part of that. Such sectors include space exploration, energy (e.g. fission, nuclear, solar), software, and artificial intelligence. In fact, my personal ambitions is to eventually start a business within one of these innovating sectors. I want to combine my interests for start-ups with my love of science. Physics I feel would adequately prepare me for this, but I want to pursue this goal AFTER I get some experience in industry--something that a physics degree won’t really help me with. I feel that in order to get jobs in these sectors, an engineering degree would be much more useful than a physics degree. I feel engineering will still satisfy my love for physics (to an extent), but is a smarter choice in the long term. For example, on SpaceX’s website, all of their positions require some sort of engineering degree and it seems very unlikely to get a position with a Physics degree. I feel the same would apply to any other innovating companies as well. If I go the engineering route, I don’t really want to commit to a specific field (as an undergrad). Since i’m caught between aerospace, energy (nuclear and fusion), and being able to do anything else that I might be interested in at some point in the future, I’m leaning towards the mechanical route because I feel it allows me to be flexible and is the perfect bridge between the aerospace and energy disciplines (any any others). I would like to go get a PhD, however as of right now I have no idea what I would specialize in. I feel a PhD would further allow me to be on the front lines of cutting edge stuff, and also would allow me to continue to learn fun stuff with like-minded people (sounds like a great experience!). For those who say, “just follow your passion” etc. etc., the problem is that I AM concerned about salary and job prospects. So this is something to be taken into consideration. My questions are 1) Although I might have just influenced your answer with my biased writing, what would you advise me to do? 2) If I go the engineering route, which discipline do you recommend, and would a PhD be of any use?