A tale of two path separators (opens in new tab)

In macOS, you can apparently create files and directories in the Finder with names that include slashes. If you then go into the terminal and take a look with ls, you’ll see that the slashes are actually colons. I don’t understand all the nuances, but I know this is a side-effect of the fact that macOS has not one but two path separators: the slash (/) and the colon (:). The two separators are used in different contexts, and the system will translate between them as needed. These two separato...