Does these questions require superpowers? I think no but a bit different thinking model for sure. For example thought that "file is somewhere" is already miss m

Does these questions require superpowers? I think no but a bit different thinking model for sure. For example thought that "file is somewhere" is already miss match for model since point of hash based file systems is usually make location irrelevant. Traditional deletion should be split to real delete and unlink (see: https://news.ycombinator.com/item?id=14541776 https://news.ycombinator.com/item?id=14541776). Editing mutable file you just mutate it everywhere since it's just single file after all. Editing immutable content is same as creating new file. I think system on article doesn't suffer duplication problem (due tagging, for immutability maybe). There is no problem showing file on multiple path or "result of multiple query" without data deduplication unless we somehow try to brute force tag FS over traditional HFS. If I understood your concern correctly...