[dgk42]

We employ a technique similar to that of Obj-C in our memory handler implementation. You attach objects not to a parent object, but to a generation. We have 4 a-priori-specified generations per node (2 of them are stubborn and die during the de-initialization/clean-up phase of the node as a whole).

And this is another area where a functional paradigm makes sense. Mutations are "hidden" (and the C layer that's responsible for doing them concurrently lives in another "realm" (monad)). So, memory handling is easy and monitoring has shown us that fragmentation is kept to a minimum.