Comment by harrall

While that is true, you also end up learning foundational concepts which are frequently common between fields. You get a major head start when learning.

For example, when learning electrical engineering, you might be forced to get good at vector calculus, and then when you move over to mapping software or physical chemistry, it turns out you use the same vector calculus.

The application of vector calculus might vary but it sure takes way longer to learn vector calculus than to learn how to apply it differently.

Vector calculus probably isn’t the best example but you get what I mean. I just find juniors learn new things so slowly. Hell, when I look back at my university days, it took me a long time to learn anything compared to now.