[imron]

> There are plenty of programmers for whom this is cryptic

I've never really done functional programming, and map was cryptic the first time I saw it, but it's literally a concept that can be understood by any competent programmer in under 30 seconds - apply a function to every element of a collection and return a collection containing the results.

I don't have any sympathy for programmers who find simple abstractions like this cryptic but then don't try to understand them.