Thanks to Allen Wirfs-Brock's suggestion: For more information on Gregor Kiczales' work on meta-programming and open implementations see: http://www.parc.xerox.com/spl/projects/oi/default.html which leads directly to the publication abstract and download links at: http://www.parc.xerox.com/spl/groups/eca/pubs/complete.html#Kiczales:TUT95

I downloaded this document (Postscript) and converted it to PDF. The result is titled (surprise :-) "Open Implementations and Metaobject Protocols", is 330 pages long, last modified Sep. 8, 1996, and appears to be the draft Alan refers to below. The PDF file is 827KB. I'll be happy to upload it if someone can tell me where (presuming Gregor doesn't mind).

Mike Wirth

"Alan C. Kay" alank@wdi.disney.com on 03/01/98 03:52:08 PM

To: cohenb@gemstone.com, squeak@cs.uiuc.edu cc: wirth@almaden.ibm.com Subject: Re: "Open Implementations and Metaobject Protocols" (was Re: class, prototype, meta)

At 3:36 PM -0800 3/1/98, Bruce Cohen wrote: -- snip -->

Gregor was circulating early drafts to the object community, which may be why Alan Kay remembers reading a copy.

Yep, now that I vaguely recall, it very likely was a draft of someone's that I perused. What is so interesting about this subject area is the tantalizing notion that by several mechanisms (many of them involving various kinds of confinement) one should be able to get almost everything in a system to be late bound without either great danger or significant performance hits. Cheers, Alan