Thanks for the video. Really interesting.
Asynchronous mechanisms in distributed system or microservices it’s a good way.
But I’m trying again to understand the concept and how it could be managed over a network.
If you have some examples or code using this concept I would be interested. 
And I’m struggled why some many big companies Google, Facebook, etc… are using a lot of RPC’s style internally while message passing seems better .
Because at the end recent RPC solution such as gRPC, Thrift, Avro, etc… are kind of RPC over messaging. Code does not call remote method as local method but kind of wrapper around a use case. But publishing as method over an IDL RPC interface.
