[vindarel]

This is my attempt at explaining but honestly it is not so easy! https://lisp-journey.gitlab.io/pythonvslisp/ see also https://mikelevins.github.io/posts/2020-12-18-repl-driven/

It is actually not about a "REPL" but "image-based" development. It is WAY ahead of the Python REPL, which was already a relief for me. The Python REPL is archaic in comparison.