If you’ve ever wanted to understand basic economics/investing/financial intelligence, then please watch this video. Its author is worth $40b from investments and trading.
From it, I realized that the health of any nation (as seen in the value of its currency, stock market and overall standard of living of citizenry) is determined primarily by 1. What the nation produces. 2. How well they can produce more and sell faster, better, cheaper what they produce and 3. How much money/credit they can borrow based on the first two factors.