The latter would add subscription and streaming, and more efficient transports. But yeah they are basically the same idea. I hate that for years the concept of

The latter would add subscription and streaming, and more efficient transports. But yeah they are basically the same idea. I hate that for years the concept of RPC was equated to XML which in turn equated to some implementation of the (XML based) tool and then a whole lot of distracting discourse around XML vs JSON, we kinda do still have that these days with yaml vs whatever.