[gotofritz]

Micro services are a different kettle of fish though

Firstly, the benefits they offer have often little to do with the architecture itself, but with the bigger picture (separating teams, CIs, allowing different stacks, managing costs, scaling, etc).

Secondly, unlike microkernels, not all microservices have to talk to every single other microservice. If you have a service to send emails, say, there'll be a few services that interact with it, but the majority won't. The same for an image resizing service.

So what you say doesn't necessarily hold