Technical Issues of Separation in Lisp Function Cells and Value Cells (1988)
My favorite quote:<p><pre><code>    We feel that the time for such radical changes 
    to Common Lisp passed, and it would be the job 
    of future Lisp designers to take lessons from 
    Common Lisp and Scheme to produce an improved 
    Lisp. 
</code></pre>
I don&#x27;t know if it is truly indicative of a general outlook, but the implication I read is that future Lisps are expected and encouraged.<p>An open question I have, and if this is covered somewhere already, I&#x27;d love to see it.  It is interesting to me that while Lisp was looking to condense namespaces dramatically, it seems many other languages went the opposite route.  Is that a trend I just don&#x27;t understand, or is there something inherent in Lisp that favors fewer namespaces?