24. People often share articles about cosmology or quantum Physics….because such articles open the mind to vast and often unconsidered possibilities, they expand thought and cause people to look beyond themselves (Keltner and Haidt, 2003). Emotional content more generally may also be particularly viral (Heath, Bell andSternberg 2001, Heath 1996) http://www.rhsmith.umd.edu/marketing/pdfs_docs/2009%20Marketing%20Camp/BergerViralityTheScienceofSharing.pdf Awe-inspiring and emotionally rich content is more viral.