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+The venerable Gnus newsreader has evolved over the years to interface
+with many different types of news- or mail-like backend programs,
+presenting all of them using a unified interface.  This sort of
+software often calls for an object-oriented architecture, at least as
+regards polymorphism, yet Gnus was written well before Emacs lisp
+acquired the object-oriented tools and libraries – largely borrowed
+from Common Lisp – that it boasts today.
+
+Yet Gnus needed something "object-oriented-like", and so nnoo.el was
+born: a rather amazing (and frankly terrifying) implementation of
+object-oriented behavior using functional code.
+
+This talk will be a brief introduction to how this existing system
+works, and to the ongoing, incremental effort to port it over to newer
+Elisp tools like generic functions, structs, and objects.
+