This is one of the most popular notepad tricks because of its mysterious nature. In order to get an idea as to what this trick does, just follow the steps given below:
Type “BUSH HID THE FACTS” or “this app can break” (without quotes).
Save that file with any name and close it.
Open It Again to see the magic.
Reason For This Behavior: It is known as the 4335 Rule. It means that if we enter four words separated by spaces, wherein the first word has 4 letters, the next two have three letters each, and the last word has five letters. Then Notepad Automatically hides the text into unknown code.