FWIW I worked also on scientific software (phylogenetics, which is all about biological evolutionary trees) and the tree structure is like Atree (https://github

FWIW I worked also on scientific software (phylogenetics, which is all about biological evolutionary trees) and the tree structure is like Atree (https://github.com/RuneBlaze/internode/blob/main/src/tree.rs#L125 https://github.com/RuneBlaze/internode/blob/main/src/tree.rs...). It does help (roughly ~5x vs. pointer-chasing trees, probably can be further optimized) for my workload, but at the same time quite some time was spent just making sure the tree is correct.