You'd have to hunt around for things, hope that whatever you were doing didn't have weird unpredictable effects, and was repeatable. While you could write down everything you typed, and some precis of what resulted, or even in some cases record the result (eg ssh-ing to a machine from inside an emacs buffer or something like that.
You'd have to hunt around for things, hope that whatever you were doing didn't have weird unpredictable effects, and was repeatable. While you could write down everything you typed, and some precis of what resulted, or even in some cases record the result (eg ssh-ing to a machine from inside an emacs buffer or something like that.