What I meant to say (hence the downvotes...) is that Rust's "borrow checker" is enough of a nuisance that this graph library replaced memory addresses, i.e. poi

What I meant to say (hence the downvotes...) is that Rust's "borrow checker" is enough of a nuisance that this graph library replaced memory addresses, i.e. pointers, with indexes into an array, effectively creating its own virtual address space.