That's actually intentional to avoid infinite loops in the graph, I have to add an integer to common titles. Thanks for the feedback, its obvious now that this may be confusing as I don't explain it.

That's intentional to avoid infinite loops in the graph, I have to add an integer to common titles. Thanks for the feedback, its obvious now that this may be confusing as I don't explain it.

thanks. I've had lots of students and new graduates ask me about career options - so i thought this might help.