Which university subjects are known to be really challenging?

Yo! So, I've been trying to figure out what subjects I might want to study once I get to college. I'm kinda up for a challenge, but I also want to know what I'm getting myself into. Could anybody tell me about the hardest university subjects, based on the workload, complex topics, etc?

Absolutely, I can break down some subjects that are typically seen as challenging due to intensive workload or complex material. Of course, it varies from person to person, based on individual strengths and interests. But here's a general guide:

1. Physics: Physics can be incredibly challenging because it combines complex mathematical concepts with abstract theories about the way the universe works. Expect to deal with topics like quantum mechanics and relativity that can turn your intuition on its head.

2. Engineering: Different types of engineering like Mechanical, Civil, Electrical or Chemical often involve heavy course loads with tough subjects such as Advanced Chemistry, Thermodynamics, and Fluid Mechanics.

3. Mathematics: It's not just about calculus or statistics; as you go higher up, topics such as Linear Algebra, Abstract Algebra, Real Analysis, and Number Theory can be quite complex and abstract.

4. Computer Science: While initially it might seem fun to write basic codes and build websites, higher-level computer science courses involve complex algorithms, machine learning, artificial intelligence, which can be challenging.

5. Medicine: If you're aiming for Pre-Med, be prepared for demanding science courses such as Organic Chemistry, Anatomy and Physiology that require a lot of memorization and practical application.

6. Law: Legal studies are filled with lots of reading and writing, case studies, legal documents, making it quite intimidating for some.

7. Architecture: It's known to have long studio hours, many projects and intricate design work. You'll need to combine creativity with structural engineering principles.

Every field has its unique set of challenges and your experience will largely depend on your personal interests and working style. The most important thing is to find a subject you're passionate about - that way, even the challenges can be enjoyable and fascinating to overcome.