I could see myself living by the no-undo fphilosophy, though. Do your best not to make any mistakes, and if you do happen to slip one though, work with it instead of pretending it never happened. It makes you pay more attention to what you're doing, and forces you to care about it.

Maybe i'll try to make a game this way. Maybe i'll stop using backspace also.

note: This post was made without using the backspace jkey.