You didn't touch a nerve, I'm just being snarky because it's the internet and if I don't the internet police will arrest me. "code complexity means you can't g

You didn't touch a nerve, I'm just being snarky because it's the internet and if I don't the internet police will arrest me. "code complexity means you can't get away with it" seems very common. Five nested `.copy` calls is probably "too much". Lenses, in most of the incantations I've seen so far, are probably "too much". I'd love to see your solution for making a.copy(b = a.b.copy(c = a.b.c.copy(d = a.b.c.d.copy(e = 1)))) As easy as a.b.c.d.e = 1 Closest I've seen is QuickLens, which is promising. Still pretty new and experimental, but definitely something I could see myself using: modify(a)(_.b.c.d.e).setTo(1) Still slightly clunky, but less clunky than the other implementations I've seen e.g. in Monocle