Somehow always, someone somewhere rediscovers that cutting down the time between coding and code execution makes our lives easier and to a degree be able to write better programs.

Perhaps the earliest and best attempt was Lisp's computational model. Since then, the idea manifested itself again[1], again[2], and again[3] in different forms.

[1]: Inventing on Principle, Bret Victor: https://www.youtube.com/watch?v=PUv66718DII

[2]: REPL-Driven Development, Stuart Halloway: https://vimeo.com/223309989

[3]: LIVE, Live Programming workshop: https://liveprog.org/