Per http://goo.gl/wy5mHc: https://en.wikipedia.org/wiki/Variadic_template Isn't it a pity that the first language supporting them hasn't even a section over there ? I invite any expert interested into the task to write the missing D section.
https://en.wikipedia.org/wiki/Variadic_template#D Basic intro online. It's actually hard to explain variadic arguments without talking about TypeTuple. Anyone with better example is kindly invited to either edit or propose them here :)
I see that the article in question has an elaborate section on D now, authored by multiple contributors, so this seems to be fixed. Thanks to all who contributed!