[pas]

Thanks for the detailed response and concrete examples!

Reading signatures is one thing (and zip is "easy"), but without examples it doesn't really help in most of the cases. Because even if I know the concept, I don't know when it comes handy. (For example I just looked at Forall ( https://static.javadoc.io/org.scalaz/scalaz_2.12/7.2.24/scal... ... Forall is an endofunctor in an endofunctor category ... ah yes!), and then there are tools that come with labels (DList's doc page: nice for append heavy workloads, eg. logging; yes, great, what's Forall good for? What's Strong? Why Alpha exists? What's =>: ? That's not even documented :( It cannot be searched for https://github.com/scalaz/scalaz/search?utf8=%E2%9C%93&q=%3D... ... It's not on the cheatsheet http://eed3si9n.com/scalaz-cheat-sheet .. .I mean it's on it, but it is only used, not defined. etc.)

That's not a type reading thing. That's the bad documentation, and the learner-unfriendly naming convention.