A "Closed State" refers to a condition in which a system or entity is not open to external influences or interactions. This can apply to various contexts, such as a closed economy that does not engage in international trade, or a closed ecosystem that does not allow the introduction of new species. In these situations, the internal dynamics are self-contained and operate independently from outside factors. In the realm of technology, a closed state can describe software or hardware that restricts user access or modifications. For example, proprietary software like Microsoft Windows operates in a closed state, limiting users to the features and functionalities provided by the developers. This contrasts with open-source systems, which encourage user participation and customization.