@Man hattab_Project_2000 Yes, just an example of alternatives. Perhaps a bad one. And I see no reason both couldn't be used. I merely brought up hard copies of information should something happen to the electronic version. That way the knowledge isn't lost. As for space, there's millions upon millions of books now. The only issue is if you keep them in one place. And while you do have a point about nodes, at the same time should something happen to the physical version it could simply be re-transcribed.