Yeah, I'm aware of this, but I think it won't hurt to have such an useful utility in Emacs itself.

On Thu, Sep 30, 2021, at 4:03 PM, Adam Porter wrote:
> "Bozhidar Batsov" <bozhidar@batsov.dev> writes:
> 
> > Great idea! I think having `with-memoization`/`memoize` would be
> > pretty useful in general. E.g. in Clojure that's a built-in
> > https://clojuredocs.org/clojure.core/memoize
> 
> Note that there exists an Elisp memoize library, Skeeto's:
> 
> https://github.com/skeeto/emacs-memoize
> 
> But there are some performance issues in general, e.g. Chris explains
> some here:
> 
> https://github.com/skeeto/emacs-memoize/issues/11
> 
> 
>