My proposal for a shell on the Mac, in the late 80s, was: - Spaces in filenames get transformed to non-breaking spaces by the filesystem; - The filesystem tre

My proposal for a shell on the Mac, in the late 80s, was: - Spaces in filenames get transformed to non-breaking spaces by the filesystem; - The filesystem treats nbsp as equal to space (just as case-folding treats A=a, B=b, etc.) Now, argument parsing, mouse double-clicks, etc. all respect filenames as "words", and the output from things like 'ls' just work. (Yes, I'm well aware that there are case-sensitive filesystems out there. I'd forgotten that iOS was one of those).