Rick Falkvinge has a good overview over the history of copyright in his blog:
A colleague of mine had a problem with test cases in Eclipse. When we checked, the current directory looked pretty … odd.
After closer inspection, we found this directory on his hard disk:
Solution: The slash you see is not the normal slash but the Unicode fraction slash.
So with the Unicode support in your file system, you can finally create files with “absolute” names. :)