The Big Rip is the name given to a theory in physics where the expansion of the universe accelerates to the point where even atoms get ripped apart. The first signs of the big rip will be when stars start to disappear from the night sky.
Believe me you will be waiting around longer than the end of the universe if you try to randomly brute force even quite a short big rip encoded message. It works using the simplest possible method of all - namely the barrel lock. While most barrel locks are on