Which are known to be the toughest college classes in America?

Hey everyone! I'm just curious, what do you guys think are the hardest college classes in America? Even if I'm not the one taking them, I think it's good to know what I might be up against. Your experiences and insights are much appreciated.

The difficulty of a class can broadly depend on the material itself, how it's taught, the institution, and the student's personal strengths and interests. However, some classes have gained a reputation for their difficulty:

1. Organic Chemistry: Often called "O-Chem," this class is notorious across pre-med students. Organic Chemistry requires understanding complex chemical structures and reactions, and there's a large volume of information to digest.

2. Quantum Mechanics: This upper-level physics course is known to challenge even the most talented science students due to its abstract concepts that draw away from classical physics, heavily relying on high-level mathematics.

3. Thermodynamics: This engineering and physics class has students grappling with hard-to-visualize concepts and complex math.

4. Intermediate Economics: Economics at the introductory level may be straightforward, but intermediate-level courses can involve complex mathematical modeling and abstract concepts.

5. Advanced Cell Biology: This course involves understanding complex mechanisms and pathways, all happening within millions of cell types, each with its unique function.

6. Linear Algebra: While algebra itself is manageable for many students, linear algebra can present a difficulty spike because it introduces abstract vector spaces and linear transformations.

Remember, just because a course is notoriously tough doesn't mean it's impossible. Lots of students succeed in these classes. And these classes can push you to develop excellent study habits and problem-solving skills, both of which are beneficial in any career path. Good luck!