[brudgers]

In the early stages of a project everyone is a beginner. Success is success because people become experts and experts are experts because they know how to do and want to do sophisticated things.

The example of the toilet is perfect. Good interfaces are designed to meet the needs of the user community. An expat in Japan is not a member of the community for some sense of "member" and "community". The solution for the outlying case is that the outsider asks for help. This transfers the expertise.