As it is not possible to foresee the development of the slip-box, the fate of the notes is nothing to worry about. In contrast to the fleeting notes, every permanent note for the slip-box is elaborated enough to have the potential to become part of or inspire a final written piece, but that can not be decided on up front as their relevance depends on future thinking and developments. The notes are no longer reminders of thoughts or ideas, but contain the actual thought or idea in written form. This is a crucial difference.