Submitting this to provide some extra context for the discussion in http://news.ycombinator.com/item?id=4474166 http://news.ycombinator.com/item?id=4474166 (Ye

Submitting this to provide some extra context for the discussion in http://news.ycombinator.com/item?id=4474166 http://news.ycombinator.com/item?id=4474166 (Yes, that's my book.)