I've been thinking about how to make money. Yeah, I've got my business, but one also thinks outside the box, right? Thinking maybe I should do this or I should do that. But one thing that really comes to me is how a lot of people, very slowly, in a consistent, resilient manner, make money on arbitrage trading. I know two people who do ...

If you look at the cost of money transfers worldwide, they are going down. Extremely competitive markets are charging about 0.5% to transfer money from one country to another. If you're looking at the top super-competitive corridors, they're between 0.5% and 1.5%. Emerging markets are between 2% and 3%, and some difficult, non-liquid m...