1. Instead of using static data members, why not use global variables?
2. Describe how it is often possible to avoid RTTI by better use of virtual functions.
3. Discuss the circumstances under which RTTI should be employed.
4. An alternate way of implementing general linked lists is with templates. What would the parameter(s) to the template be?
5. What are the tradeoffs between implementing lists using inheritance per the example, and implementing them using templates?
6. Is the generation number a foolproof way of preventing the use of stale iterators? Can you devise a better way of doing this? A foolproof way?