It is. I talked to one of the devs a few years back, and he explained how they used [Protocol Buffers][1] internally, because XMPP just didn't work at their sca

It is. I talked to one of the devs a few years back, and he explained how they used [Protocol Buffers][1] internally, because XMPP just didn't work at their scale. XMPP is a protocol that Google uses in some instances to talk to the rest of the world. But inside their ecosystem, they have no reason to stick to it. [1]: https://developers.google.com/protocol-buffers/ https://developers.google.com/protocol-buffers/