Maths is a science that stretches across various fields. Due to it sharing the same logic all across the world it has often been called a universal language, usually only referring to our corner of the universe. But math is also our best chance to make ourselves understood by other intelligent life forms, making it a key component in interstellar radio messages that have been sent out from earth in efforts to make contact with extraterrestrials. Because while over 7000 spoken languages have evolved on earth, there is only one language of math. Making it probable to be the same way in other parts of the universe.

Duolingo has become a vital instrument for people trying to make themselves understood by others. Now that they are venturing into maths, it would be fitting to bring this legacy with them, and leave earth for a voyage into space. Sending out equations for aliens.