Beautiful that it can get actually compiled... I dreamt of that, but in particular, with J, it'd be very hard as the actual implementation is data driven, i.e.,

Beautiful that it can get actually compiled... I dreamt of that, but in particular, with J, it'd be very hard as the actual implementation is data driven, i.e., lexical analysis alone would require building a kind of interpreter for chained operations to work efficiently under all circumstances or compile all possible variants of execution.