Technically the presentation-layer problem existed already with things like legacy path separators, making the Finder tell lies in the presence of colons or sla

Technically the presentation-layer problem existed already with things like legacy path separators, making the Finder tell lies in the presence of colons or slashes. I suspect that normalization differences will be a little like telling two files apart when one has a trailing space, or hidden file extensions; there will have to be some distinction but maybe no easy answer.