Good points Prashant!
Regarding how to go outside of one's field, I recommend...
1. Reading books by polymath who naturally synthesize multiple fields and who are good at explaining things in layman's terms (ie - Nassim Taleb, Charlie Munger, Jordan Peterson, etc).
2. As I share in the article, I think investing models are a great place to go to since we are all investors.
3. Also, I am biased here, but this is what our Mental Model Club is designed for (https://bit.ly/3u5gtbZ)