I do agree that files/folders are bad in general, but tags will probably not fit the bill too. I think the future file system should be lying within graph theor

I do agree that files/folders are bad in general, but tags will probably not fit the bill too. I think the future file system should be lying within graph theory. Something like semantic web, if you create a file, you need to create at least one semantic link to other files. if you remove one, you need to bridge the separated graphs. But how the semantic link could make sense for human, requires far more work and research I guess.