I'm arguing _against_ any one feature; I picked generics because it's the classic criticism of Go. I do think that package management might be a bigger factor, but my point is that there are multiple factors. You can't say "well Rust doesn't have tooling, so it's not productive."

I think we're mostly in agreement here, other than that I think your first post put too much weight on one specific part of a complex equation, and that you feel there's a clear-cut answer, and I don't.

(I do agree that "there's a package for this" vs "there isn't" is a huge factor of productivity. It's actually the one I personally cite most often when talking about my own productivity in Rust.)