>> Lisp derivative languages are notorious for their poor readability

Is it though?

I find at least 2 other languages more unreadable.

- Scala, with operators everywhere, you need to have a cheat sheet

- Perl, you know that joke that this is the only language that looks the same before and after RSA applied on it?

Lisp, on the other hand, is pretty readable, at least to me. I only used Clojure from the Lisp family and it had a great impact on how I think and write code in other languages. The result is more readability. For a long time MIT tought CS courses using Lisp and SICP is also a pretty amazing read.