I'd highly recommend learning lisp and writing some higher-order functions with macros. You start with an instance of a lower-order function, insert a few backticks and commas where appropriate, wrap that in a defmacro, and boom, you're a metaprogrammer. You can certainly do similar stuff in other languages, but it's almost always a cludge.
The rest of lisp is pretty easy if you've done any sort of functional programming, and view the code through a lens that translates (foo ...) to foo(...)
The rest of lisp is pretty easy if you've done any sort of functional programming, and view the code through a lens that translates (foo ...) to foo(...)