So, this is an mirror of a post from John Carmack. Recently I learned that his articles on #AltDevBlog are no longer acessible. So, in order to archive them, I am re-posting them here. These articles are definitely good reads and worth to be preserved. Probably everyone reading this has heard “functional programming” put forth as something that is supposed to bring benefits to software development, or even heard it touted as a silver bullet.  However, a trip to Wikipedia for some more informatio...