You know what else is scarce. The blueprints for a room temperature superconductor. It's so scarce there aren't any yet.
Yet, once it does exist, it's no longer scarce. Unfortunately, you can't own something that doesn't exist yet so that doesn't help you at all. The paper the blueprints are printed on would still be scarce but not the content therein. This seems pretty simple so maybe you are trying very hard not to understand?