Millions of smartphone apps are designed to entertain us and make everyday life easier. Unfortunately, it can be noticed that many people become intellectual cripples because they deal with almost everything in their applications and smartphone. For example, why learn a foreign language if I have an translator on my smartphone. We more often are writing on the keyboard than a pen on paper. Why learn grammar if the application gonna correct are mistakes. What would happen if I landed in a wild forest without coverage, without access to the Internet, would I manage it myself, or would I be die fast ?