Children knowing about their parents

The statement that children need to know about all their parents seems
to have some bad implications to me. If a child has n names, then it
naturally needs to point to n parent nodes. But doesn't a file have to
point to every version of its parent node that has the file as its
child? And everytime you update a directory, you need to update all
children of that directory to point to the new parent. This seems
unscalable to me. Am I missing something obvious here?
Received on Sat Oct 21 14:36:05 2006