Okay sorry that sounds snarky and unproductive- What I mean is, as a model for how human evolved navigation works- a persistant work space with effectively no need to "save" work is more like reality. If you scribble something on a napkin, and leave it on your desk, the desk doesn't demand you name the napkin when you try to leave the house. At the exact moment you need to leave to go to work, is the exact moment you are least prepared to think of a name and location to find something later.
But with a persistent workspace, you can just shut the program instantly, without being spammed by 15 "save, discard, cancel" dialogues. Pressing the power button on the computer, and having the computer just.. turn off… and then turn back on having not forgotten anything by accident or otherwise. You can name and save stuff AT YOUR LEISURE.
that. is. the. future.
…. of 1996. It's 2014 now and we've just now gotten round to adding it… to one program. a text editor. now we just need to get the rest of the developers in the world on board with this really obviously correct thing to do.