I disagree that the 'arcane sigil invocations' are necessarily a problem. Yes, they can be, but I also think they can definitely be preferable! Naming everythi

I disagree that the 'arcane sigil invocations' are necessarily a problem. Yes, they can be, but I also think they can definitely be preferable! Naming everything as a function often leads to a problem of very deep visual nesting. For example, map-then-filter can be written as "filter p . map f" in Haskell, whereas in sigil-free languages you'd write a mess like (lambda (x) (filter p (map f x))) in Lisp or "lambda x: filter(p, map(f, x))" in Python. Of course, function composition is a very simple case, but something like lenses are another less simple case where a library would be unusable without custom operators.