Am I the only one who thinks all other subjects are kind of boring? They're the only areas of thought that create genuinely new concepts. For any other area to say something meaningful they have to appropriate mathematics. So if they came up with a genuinely new idea, they'd have to come up with new math to express it. But, this new math would likely be useful in other areas, so it'd more properly belong to math as much, and not the area where that mathematical idea originated.

If you've studied the basics of math (calculus, linear algebra, probabillity, elementary group theory), learning any other topic (physics, neuroscience, economics, computer science, the list goes on), just feels like putting a bunch of labels in boxes you already have in your head, aka just a bunch of rote memorization and vocabulary building. Of course, not saying this makes these other fields less useful, but it certainly makes them a lot less interesting.