It shows that there are some problems (eg PCP), that are literally impossible to solve for every case. If you were able to come up with an algorithm that could

It shows that there are some problems (eg PCP), that are literally impossible to solve for every case. If you were able to come up with an algorithm that could do so, you would've found a solution to the halting problem, which we know is impossible. Other than that, it's just some person having fun compiling between two different esoteric programming languages.