This post inspired me : http://www.krisbuytaert.be/blog/docker-vs-reality-0-1 !
When people say real world, they actually mean the sick, bitter and desperate world they imagined for you.
So how to produce "ahoy:234" with "ahoy:" and [1,2,3] ??
The idea [1] is "a program is composed of severals one-liners", lets try to port this one liner into several popular languages. :)