This layout provided propinquity while maintaining propriety. He is also known in social network theory for the proximity effect (or propinquity). In other words, relationships tend to form between those who have a high propinquity. These towns all feature in "Propinquity". The introduction of instant messaging and video conferencing has reduced the effects of propinquity. Propinquity can be more than just physical distance. A closely related theory, electronic propinquity, also examines this quality of human connection through technology. "Nothing propinks like propinquity," later dubbed the Ball Rule of Power. Propinquity is one of the effects used to study group dynamics. Propinquity is a 1986 novel by Australian author/journalist John Macgregor. "Propinquity (I've Just Begun To Care)" is a song by Mike Nesmith of The Monkees. "Propinquity" sat in the warehouse, missing the sales bandwagon. Once published, "Propinquity" drew praise mixed with criticism from reviewers. It could be that interaction, rather than propinquity, that creates attraction. In Ryan North's webcomic "Dinosaur Comics", T-Rex discusses propinquity.