There has always been a degree of promotional fiction to the ‘nothing hidden’ story. The Macintosh brought us the now-ubiquitous Cut/Copy/Paste paradigm using a

There has always been a degree of promotional fiction to the ‘nothing hidden’ story. The Macintosh brought us the now-ubiquitous Cut/Copy/Paste paradigm using an fragile invisible clipboard. (Fragile because Undo has never restored clipboard data lost to an accidental Cut or Copy.) The Xerox Star didn't do it that way; it had Move and Copy to an explicit destination, with no hidden state.