Vim is a fantastic editor---no argument there! But you can always revert a configuration choice you made without restarting Emacs. Either use the built in conf

Vim is a fantastic editor---no argument there! But you can always revert a configuration choice you made without restarting Emacs. Either use the built in configuration interface, or evaluate a form with the change. For example, if you set something to t you can reset it to nil and just C-x-e that form.