About the author: "... When I’m rewriting everything in Common Lisp (which you should do IMMEDIATELY), I’m out with my family climbing mountains, playing at the park, repairing bicycles, and dreaming of lambdas (not lambos)."

Um ok.

"Common Lisp is the most powerful programming language in history. Emacs is the most powerful text editor in history." .. "I’m a former English teacher (ALT) and current freelance software developer"