MRI has a global interpreter lock, so that does not make much sense. In fact, the diagram is simply wrong. This was rectified by the author in an article two w

MRI has a global interpreter lock, so that does not make much sense. In fact, the diagram is simply wrong. This was rectified by the author in an article two weeks later: http://patshaughnessy.net/2012/1/18/seeing-double-how-ruby-shares-string-values http://patshaughnessy.net/2012/1/18/seeing-double-how-ruby-s...