mpv https://live0.emacsconf.org/gen.webmA few years back, this schedule included smart voices attempting to exercise some cultural leadership. It was bright, well-meaning, and largely right. Being right does not stop RMS. It inspires him to travel in an alternative direction of his choosing for the rest of his life.
The reason I recommend Lem is because CL is a general purpose programming language. The two-way flow of professional code in and out of the editor is a tremendous advantage that pays all sorts of dividends to libraries, innovation, runtimes, and tooling. Elisp is a Lisp, but affectionately known as "the worst of the Lisps" among serious Lisp programmers.
Some among the Emacs community are not blameless. Todays AI naysayers are just yesteryears tree-sitter doubters who said "We don't need all that fancy JSON garbledeygook" about LSP adoption. They were against an X frontend. They were against cl-anything in the symbol space. As the rock weathered away, the most abrasive sands remained. Proud they are of the lost atoll upon which no coral may grow.