Didn't mean to offend you guy.

As a rule, whenever I accidentally up or down vote someone, I leave a message explaining the mistake and my reasoning. Doesn't happen often... but I always thought of it as a courtesy. Again... no offense was intended.

On the question of math topics not adding anything to the discussion. Well, we'll need to agree to disagree. The point was that Calculus... is NOT an easy subject to learn. And you get a sense of how esoteric it seems to an initiate by looking at the topics it encompasses.

Finally, try to relax a little man... no need to get snippy on HN. We should be able to have a discussion on a, relatively uncontroversial topic, without getting emotional.