I found the calculations I made over a year a ago: http://news.ycombinator.com/item?id=1252512 http://news.ycombinator.com/item?id=1252512 . If you don't mind f

I found the calculations I made over a year a ago: http://news.ycombinator.com/item?id=1252512 http://news.ycombinator.com/item?id=1252512 . If you don't mind following the link, it answers your question.