"Simple Made Easy" Made Easy: Clojureの設計思想を理解しよう

Rich Hickeyの有名なプレゼン"Simple Made Easy"を簡単に解説(*> ᴗ •*)ゞ
Clojureの基本的な設計思想を理解しよう!
全文書き起こし記事: https://logmi.jp/main/technology/321962
cf. 2026年版: https://speakerdeck.com/lagenorhynque/simple-made-easy-made-easier

Transcript

1. "Simple Made Easy" Made Easy "Simple Made Easy" Made Easy Clojure Clojure
2. lagénorhynque lagénorhynque (defprofile lagénorhynque :id @lagenorhynque :reading "/laʒenɔʁɛ̃ k/" :aliases [" "] :languages [Clojure Haskell English français] :interests [programming language-learning law mathematics] :commits ["github.com/lagenorhynque/duct.module.pedestal"] :contributes ["github.com/japan-clojurians/clojure-site-ja"])
3. Clojure Clojure (*> ᴗ •*) (*> ᴗ •*) clojure tips ? 7 7
4. 1. "simple" "easy" 2. Simple Made Easy 3. "simple" "easy" 4. "simple" "easy" 5. "simple" 6. "simple" 7. Clojure "simple"
5. "simple" "easy" "simple" "easy"
6. Clojure "simple" Clojure "simple" "easy" Clojure "simple"
7. Simple Made Easy Simple Made Easy
8. ( ( ) ) Clojure "simple" ( Clojurian ) cf. ( ) Simple Made Easy Simple Made Easy Strange Loop 2011 Strange Loop 2011 Rich Hickey Simplicity Matters Rails Conf 2012 | eed3si9n
9. "Simple Made Easy" "Simple Made Easy" simple "simple" "easy" "simple" "easy" ? Word Power Made Easy
10. "simple" "easy" "simple" "easy"
11. "simple" "simple" < simplex (= sim­ + plex) simplex : / : (= com­ + plex) : simple complex
12. "easy" "easy" (= + ­y) < aise/eise < adjacens adjacens (cf. adjacent) : ( ) ( ) ( ) / : : easy easy ease hard
13. "simple" "easy" "simple" "easy"
14. "simple" "easy" "simple" "easy" simple/complex, easy/hard 2 easy simple ! complex simple Rich Hickey simple or complex simple or easy
15. "easy but complex" vs "simple but hard" "easy but complex" vs "simple but hard" easy complex (= not simple) easy complex complex simple hard (= not easy) hard simple simple
16. "simple" "simple"
17. (complexity)
18. "simple" "simple" "simple" /
19. "simple" "simple"
20. "simple" "complex" ( ) "simple" (abstract) (draw away) who, what, when, where, why, how "simple" (simplify) complect abstract
21. Clojure "simple" Clojure "simple"
22. ;; Common Lisp: "complect" (defun fizzbuzz (n) (let ((fizzp (zerop (mod n 3))) (buzzp (zerop (mod n 5)))) (cond ((and fizzp buzzp) "Fizz Buzz") (buzzp "Buzz") (fizzp "Fizz") (t n)))) ;; Clojure: "simple" (defn fizzbuzz [n] (let [fizz? (zero? (mod n 3)) buzz? (zero? (mod n 5))] (cond (and fizz? buzz?) "Fizz Buzz" buzz? "Buzz" fizz? "Fizz" :else n)))
23. "complect" ( ) "simple"
24. "complect" atom, ref, agent "simple"
25. "complect" who ( ) what ( ) "complect" "simple"
26. what ( ) who ( ) "complect" "simple" e.g. core.async
27. "simple" "simple" Simple Made Easy / ! Clojure !
28. Further Reading Further Reading Simple Made Easy matthiasn/talk-transcripts > Hickey_Rich/SimpleMadeEasy.md Clojure Simple Made Easy - Simplicity Matters | eed3si9n Clojure Design Decisions Clojure - Clojure core.async Channels