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The talk by Sid Kasuvajhula is an absolutely fascinating presentation about extremely flexible object-oriented interfaces, organized in a multi-hierarchial manner -- so very nicely exploiting the compositional structure inherent in the content we operate on.

Epistemic mode, A scalable UI paradigm https://emacsconf.org/2020/talks/07/

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Wow. This is so cool. Sometimes you come across concepts that makes total sense once you know it, but then keep asking yourself why wasn't it discovered way before. This a great example of that.

Thanks for the pointer, it was very interesting! Not sure I've come across anything like this before.

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