Basically "Undos" become actions that you can later "Undo". It's very weird. I accept that it means you never loose a change but it does feel a bit like boiling

Basically "Undos" become actions that you can later "Undo". It's very weird. I accept that it means you never loose a change but it does feel a bit like boiling the ocean to produce some salt ... that said, it's an "alternative approach" that does have its merits. I like that about emacs, it challenges your assumptions and makes you think! As much concept art as a tool in itself.