I am confused when you say sharing events isn't part of event sourcing. How does a service populate it's state from other services event source if it can't access it's events?
> How does a service populate it's state from other services event source if it can't access it's events?
Because it's the source of the events and its own system of record.
If an event sourced app wants to share events, it should not be re-using internal events but creating new items intended for distribution just like you would with any other distributed system (thrift/protobuf over Kafka).
