Theorycraft = Witchcraft? Maybe

Although I can't deny that posts from a lot graphics programming blogs help us to learn new cool stuff, I'm also often worried about the quality of posts, especially when people claim something not entirely true from a pure "theorycraft" instead of actual experience.  Things that make sense on theory don't necessary make sense in reality, that is.

If you are a decent graphics programmer, you should take only empirical results as truth.