Sort of. Gob requires registering concrete types you might use in interfaces, so I can't encode a type you haven't decided to whitelist. But the registration li

Sort of. Gob requires registering concrete types you might use in interfaces, so I can't encode a type you haven't decided to whitelist. But the registration list is global in the library, so this doesn't work for access control (if your quorum leader can send it, your untrusted clients can also). Lack of interop with other languages is still a bad idea (the lesson of Java RMI), and I thought Google agreed. Having all the C++ and Java and Python services speaking Stubby was one of the most futuristic experiences there.