[levigross]

Whats wrong with "demand-creating" channels? The Go stdlib does it within their network library https://golang.org/src/net/singleflight.go#L67

[tptacek]

Because you can't select on an arbitrary collection of channels.

It might make sense for a library to return a new channel for something you do once, or once per goroutine.

It doesn't make sense to use returned channels as a basis for async dispatch.