- Understanding cache hierarchies - Selecting good names - And thinking straight forward, being able to count from zero to one and two and so on. And no, it

- Understanding cache hierarchies - Selecting good names - And thinking straight forward, being able to count from zero to one and two and so on. And no, it is not just a joke, but my actual opinion, that understanding the underlying machinery, communicating well, and being to able to think on your own through complicated matters are the most valuable skills in programming. [edited layout]