I don't keep up with Swift, but last I checked it didn't have a mature, lightweight concurrency story. Speaking generally, I find that Go is easy to write (like

I don't keep up with Swift, but last I checked it didn't have a mature, lightweight concurrency story. Speaking generally, I find that Go is easy to write (like a scripting language), but with static typing. I'm also not familiar with another language that is as easy to get up and running with (Go projects don't require you to learn a new project configuration file language, for example--just run `go build` and you get a binary).