Hey everyone! Well, I am entering what would be my senior year at the University of Arizona where I am double majoring in Applied Mathematics and Molecular & Cellular Biology. I plan to pursue a Ph.D. (and beyond) and have been engaging in activities that will make me more competitive for graduate programs, such as working in various research labs, extracurricular projects, and taking extra classes beyond my curriculum (that's what originally led to my extra major in MCB). However, I had been thinking about picking up another minor in either aerospace engineering or physics - both would coincide greatly with my desired field of graduate studies - but then I had an arguably crazy idea: do a 3rd major in physics. I went through all the curriculum and have worked out a schedule that would make it feasible, but I'd have to spend an extra year as an undergraduate - which I don't really have a problem with doing. I am aware of the general notion out there being that you have to just pick one thing and stick with that, but I don't necessarily agree. The further I tread along in the coursework and in my research labs, the more relevant and interconnected I am seeing all of these supposedly separated fields of study to be to one another. I believe they converge in many aspects, and having an understanding of multiple fields can bridge the current voids. I don't plan on ever not being in school or educating myself, and I don't care about going further into debt by staying an extra year as the knowledge itself creates an exponential amount of potential relative to pocketing the $20k. I guess I am just wondering what people with experience might feel about this. I'm interested in engineering physics, space/astronautical/nuclear/bio engineering, neuroscience and bioastronautics graduate programs. I'm thinking that if I spend the extra year building a stronger foundation in physics that I'll be much better off in grad school even if I go into a field where physics curriculum isn't stressed such as biomedical engineering. As biomedical engineering as an example, I think "What if I don't spend the extra time and energy in pursuing the physics. I'm sure I'd get through the biomedical engineering graduate program just fine, but what if not having that extra bulk to my foundation causes me to miss out on some great revelation that I would have otherwise had?" Maybe I'm just stressing out because I feel so overwhelmingly unready for graduate school, and applications are right around the corner. If the undergraduate curriculum has taught me anything, it's that my knowledge is exceedingly scant in a magnificently wondrous world full of discoveries awaiting assiduous and keen minds. Despite my diverse background and voracious quest throughout my undergrad, I still feel like there are a million things I need to learn before I go to grad school. Is it common to feel this way? Do you think I should spend the extra year and pick up the 3rd major in physics, or should I just try to get into grad schools this year and just go from there? I'm feeling incredibly lost at this point. I'd appreciate any advice!