[jdmoreira]

Very interesting. I'm wondering why they didn't implement the Lisp version on top of CL with macros

[kazinator]

I can summarize this as follows. TXR is my research platform into various topics, including many Lisp topics. It contains numerous innovations. As a whole, that requires working at the implementation level, ground up.

[flavio81]

Thanks Kaz! I had the same question.