Code analogy
In a Skype conversation with me and a few colleagues today, my colleague Ivo Jansch explained to us the difference between meta() and postMeta() in the atkMetaNode. He used for this the analogy of pregnancy. The analogy was too good to leave for the few that attended the skype chat, so I am publishing it here - with permission of Ivo - for everyone's education.

06-02-2012: