AFAIK there is no limit of depth in modern filesystems (at least in design), there is usually limit in path length (in bytes) but that's just that you have to l

AFAIK there is no limit of depth in modern filesystems (at least in design), there is usually limit in path length (in bytes) but that's just that you have to limit somehow implementation to prevent pathological instances. Eg imagine bug in some script that create some directory structure in a loop and bug that causes it to create infinite depth. It makes sense to say "enough" at some point, otherwise you could destabilise whole system.