Imagine an AI agent submits a transaction to a typical chain. What does the chain actually see? It sees a 20-byte address. Maybe a 32-byte one if you're on a hashed-address chain. It sees the transaction calldata. It sees a signature. It sees a fee. It does not see the word "AI" anywhere. The address could be a wallet on a phone. It could be a bot script. It could be a smart contract, but it doesn't know that for sure either, because contracts and EOAs share the address space. This is the identity problem. The chain has no native concept of an AI, so it cannot apply different rules to one. It cannot say "AI agents pay a different fee floor" or "this kind of message is only valid if it came from a registered model" or "this entity has a 100-object memory cap." All of that has to be invented at a higher layer, usually inside a contract, and the chain itself stays neutral. Neutral sounds nice.…