“A new study of Facebook has predicted that the social network’s rapid growth will prove unsustainable and that the site will lose 80 per cent of its users between 2015 and 2017.
A group of Princeton researchers has compared Facebook to a highly infectious disease, claiming that after it reaches a certain critical mass of ‘infected’ users, these individuals will ‘recover’ and quit the site.”
— “Facebook is an ‘infectious disease’ and will lose 80% of users by 2017, according to researchers,” James Vincent, The Independent
If you’s like to see how Princeton’s engineers apply an epidemiological model to social media, you can read study here:
“Epidemiological modeling of online social network dynamics,” John Cannarella and Joshua A. Spechler, arXiv