Hi Johan:

what is important for a presentation at OOPSLA is to give the audience
a feeling how then can apply your result.

You promote a separation of structure, traversal and behavior aspects.
What is the easiest way to simulate your approach with a more
powerful traversal language directly in Java or C++?

In other words, how can you translate your insights into
a design pattern that does not require a new language.
Would this be very inconvenient?

-- Karl