New top story on Hacker News: Ask HN: What does a developer need to know to build their own Lisp from scratch?

Ask HN: What does a developer need to know to build their own Lisp from scratch?
7 by stolen_biscuit | 5 comments on Hacker News.
Assuming the developer is competent in their language of choice and want to implement lisp in that language. What's at the heart of lisp that makes it so simple and elegant?