Prompted by the discussion here: http://news.ycombinator.com/item?id=1013789 http://news.ycombinator.com/item?id=1013789 The exchange started here: http://news

Prompted by the discussion here: http://news.ycombinator.com/item?id=1013789 http://news.ycombinator.com/item?id=1013789 The exchange started here: http://news.ycombinator.com/item?id=1013929 http://news.ycombinator.com/item?id=1013929 Image found here: http://zenoferox.blogspot.com/2008/02/circle-puzzle.html http://zenoferox.blogspot.com/2008/02/circle-puzzle.html Warning: spoilers.