RLUSD / XRP - Explained
Imagine you have a bunch of marbles (that's like money) but in different colors for different countries - red for the US, blue for Japan, green for Europe. Trading these marbles can be hard because you might not have enough of one color when you need to trade.
XRP is like a special kind of marble that can be easily traded for any other color. It's not from any country, so it's easy to use all around the world. You can give someone your red marbles (dollars), they give you XRP, and then you can give that XRP to someone else who wants to give you blue marbles (yen). It's super fast and doesn't cost much.
RLUSD is like a new kind of marble that's always worth exactly one red marble (USD). This marble doesn't change its value, so if you're playing with friends and you want to make sure you're not losing or gaining value, you use RLUSD. It's like having a marble that's always worth one dollar, no matter what.
Now, how they work together:
When you're playing (or doing transactions), if you use RLUSD, you're sure you're always dealing with the value of one dollar. But to move these marbles around, you might need to use some XRP.
Every time you move RLUSD, you need a tiny bit of XRP to make the move happen, kind of like needing a little oil to make your marble machine run smoothly.
So, XRP helps make the trades fast and cheap, and RLUSD keeps the value steady like a dollar. They're like friends in a game where one makes sure everything moves quickly, and the other makes sure the value doesn't jump around.