I'd recommend checking out this post[1] by Wil Shipley (a longtime Cocoa dev), which includes a story about how Carmack doesn't re-use code. The whole blog pos

I'd recommend checking out this post[1] by Wil Shipley (a longtime Cocoa dev), which includes a story about how Carmack doesn't re-use code. The whole blog post is a fun read. [1] http://blog.wilshipley.com/2013/12/my-doom-20th-anniversary-stories.html http://blog.wilshipley.com/2013/12/my-doom-20th-anniversary-...