buro9 answered this question very well, and I just link to his comment whenever it comes up again: http://news.ycombinator.com/item?id=2249789 http://news.ycomb

buro9 answered this question very well, and I just link to his comment whenever it comes up again: http://news.ycombinator.com/item?id=2249789 http://news.ycombinator.com/item?id=2249789