I read that article before. Here's the thing, the only thing that the "go" keyword makes easier is having the ability to have any arbitrary function run in a green thread without having to modify it's signature. However, the moment you want to actually do something useful with it (e.g. communicate with it, cancel it, or read its returned value), you're going to have to pass a channel (or more) or a waitgroup to it anyway, modifying its signature and changing its "color". The issue remains pretty much the same.
