Laziness being the default means libraries compose better though.
I quite like how Haskell does it now, and reasoning about its performance honestly isn't bad. And that's worn GHC optimizing like crazy (which is actually what makes Haskell performance wonky to think about - not laziness.)
Agreed. The laziness seems to only be useful when it is pervasive. Having only a little laziness isn’t so difficult from having none at all (eg OCaml has optional laziness but it is hardly used at all)
I quite like how Haskell does it now, and reasoning about its performance honestly isn't bad. And that's worn GHC optimizing like crazy (which is actually what makes Haskell performance wonky to think about - not laziness.)