Although there be great historical, artistic or archaeological interest in preserving them, paper documents have a limited life. Prolonging this life is the goal of the European Papertech project.

As wise as the counsel to "finish what you've started" may be, it is also sometimes critically important to do just the opposite -- stop. And the ability to stop quickly may depend on a few "cables" in the brain, according to research by UC San Diego cognitive neuroscientist Adam Aron.