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Re: dynamic vs. static typing

On Tuesday, November 18, 2003, at 05:25  PM, Ken Shan wrote:
> (By the way, if all you know about the List is that it contains a bunch
> of objects, and if there is nothing that you can do with every object 
> --
> that is, if there is no message that every object responds to -- then
> it is a pretty useless List, which you might as well replace with a
> nonnegative integer.)

As a junior member of camp 4, I must respectfully take issue with the 
blanket condemnation of heterogeneous lists... unless we agree to say 
that from a type standpoint, Scheme is unityped.  Agreed?