The thing that stood out for me, and made me think "nice", was Brandon's idea of creating a vector field type. One can then apply operators directly to the fie

The thing that stood out for me, and made me think "nice", was Brandon's idea of creating a vector field type. One can then apply operators directly to the field, without having to think in terms of lower level constructs. In that sense, I think the '9-lines' claim is fair. Any comments from anyone (Brandon?), as to whether configuration and boundary conditions can be simply applied to the vector field type?