That is remarkably accurate for a wild guess. Lisp code tends to be built from the inside. Working in a REPL, modifying the system state as you go, storing cod

That is remarkably accurate for a wild guess. Lisp code tends to be built from the inside. Working in a REPL, modifying the system state as you go, storing code into a buffer then recompiling and loading it into the image with a keystroke. Recompiling functions as you modify them, without recompiling the rest of the file, updating the code behind some classes without taking the system down, and the interactivity you get from the tooling for debugging and error handling. It all adds up.