Do you use vim as your default text editor? If you do not, have you ever been in a situation you could do nothing but use vim?
Do you use vim as your default text editor? If you do not, have you ever been in a situation you could do nothing but use vim?
In vim you can make some changes to a file, close vim, and then reopen the files, and then undo your changes, i.e. your undo history persists across sessions.