What static typing makes difficult

[james anderson]

David Mertz wrote:
> 
> ...
> 
> Actually, my strong hunch is that Lisp will also not make things quite
> as easy either... but obviously, I know similar ad hoc capability
> checking is possible there.

generic functions serve quite nicely to define type / value constrained
data-flow graphs. if one needs  "hasattr" specificity, one needs an extra
parameter, but that's all.

...