You misattribute the motivation. He wants to play. Implementing a BigNum calculator using APL concepts is one way to play. I do this all the time. I'll impleme

You misattribute the motivation. He wants to play. Implementing a BigNum calculator using APL concepts is one way to play. I do this all the time. I'll implement something that will never be in production somewhere or useful to anybody purely for the learning experience and challenge of it. [EDIT: spelling]