Nobody said anything about 1 VM per microservice. You're using the term "service" in a way I did not intend (and which is a carryover from other kinds of services)

This is illustrative of the point I was making.

One of the big benefits of microservices is the total decoupling of the code from the underlying hardware. Things are glued together by Ops, not by code. So you might have all the microservices in one VM -- or spread copies of one critical microservice across a thousand vms. It's all configurable.