I refer to this as "design backpressure". In a microservice world you need to consciously decide to cross the network boundary. With a single memory space it's

I refer to this as "design backpressure". In a microservice world you need to consciously decide to cross the network boundary. With a single memory space it's easy to simply go around whatever architecture you "should" be following. Microservices don't solve balls of mud, but they can make it harder to form and easier to spot forming.