When the experience is amplified by homoiconic data structures and structural editing, yes -- exploratory, ephemeral metaprogramming is a breeze. Compound Clojure data literals have a fully readable print representation that can be generically manipulated by built-in core library functions. Say I have a DSL that takes a bunch of nested maps and vectors as an input spec and compiles them to nested closures, and I want to create a large spec derived from some other source satisfying certain constraints, but it's not worth defining yet a higher-level DSL for a one-off definition that I intend to commit to source control. I can generate that data structure any way I like and spit the result out at the REPL or in an interactive buffer, then effortlessly plop that structure or any of its substructures into an EDN file or just inside a `def` or `let` binding in a regular Clojure file, which I then pass to the DSL compiler. It's much simpler than manipulating things like GADTs in Haskell. Even in Common Lisp, it might require some ad-hoc parsing code to accomplish the same thing.
