This paper from the Metropolis team explores the relationship between ownership rights and permissions, introduces classifications for permission types, and discusses a few examples of how permissioning impacts ownership. For example, Nouns DAO has agent permissions, the ability to control resources directly, where “resources” include executable access to smart contracts, money, or other on-chain assets. On the other hand, the ENS Endowment has meta permissions, or the ability to control how resources are controlled or who has control over resources. The team also discusses some key implications of permissions on ownership, such as Yuga Labs blocklist and Oasis smart contract upgrades. This is a must read.