I just like point-free style because it leaves me with fewer things to name, and fewer choices to make. Placeholder names like "xs" are just noise. The "x" ha

I just like point-free style because it leaves me with fewer things to name, and fewer choices to make. Placeholder names like "xs" are just noise. The "x" has no meaning here: double x = 2*x So I'd rather write it like this: double = (2*) Similarly, there's no need to introduce an arbitrary name like "input" or "numbers" for this function (part of a Project Euler solution): highestProduct = maximum . map product . concat . map (groupsOf 4)