Earlier discussion, two days ago: http://news.ycombinator.com/item?id=1747202 http://news.ycombinator.com/item?id=1747202 (There are other posts in the same se

Earlier discussion, two days ago: http://news.ycombinator.com/item?id=1747202 http://news.ycombinator.com/item?id=1747202 (There are other posts in the same series, to which the one linked here is the introduction. At least one has been submitted to HN, but hasn't attracted any comments.)