How do banks keep our money safe?
Money's Hidden Journey
How do banks keep our money safe?

You put your money in the bank, and it just… stays there. Right? Well, not exactly. Your money goes on quite an adventure — but the bank makes sure it always comes back when you need it.
Here's the trick: when you deposit $100, the bank doesn't lock your exact five twenties in a vault with your name on it. Instead, it writes "$100" next to your name in its giant digital ledger — think of it like a scoreboard that tracks everyone's balance. Your money becomes a number.
