What is Not tied to any physical commodity?

What is not tied to any physical commodity? is something that doesn’t need a real object to exist, it’s more like an idea or a promise.

Imagine you have a piggy bank. Every time you save money, it's like putting coins into the bank. But money isn't a coin, it's just a promise that those coins will be there when you need them. If you give your friend 5 dollars, they don’t get the actual coins, they just know they can use that money later.

Think of stock, like shares in a company. You aren't holding a piece of the factory or building, it’s more like owning a tiny part of a story. The story might be about a robot factory, and your share means you're saying, “I believe this robot factory will make cool robots.” If the story gets better (more robots!), your share becomes worth more.

Sometimes money or stock isn’t even tied to anything real. It’s like having a toy box in the cloud, you can play with it, trade it, and count it, but no one can actually touch the toys inside.