You also need to learn a new tool to write lisp, like paredit.

While it's amazing once you've learned it, and you're slurp/barfing while making huge structural edits to your code, it's a tall order.

I used Clojure for a long time, but I can't go back to dynamic typing. I cringe at the amount of time I spent walking through code with paper and pencil to track things like what are the exact keyvals in the maps that can reach this function that are solved with, say, `User = Guest | LoggedIn` + `LogIn(Guest, Password) -> LoggedIn | LogInError`.

Though I'm glad it exists for the people who prefer it.