If the DNS server is not set up as recursive, then each request made to a DNS server would go back to the client machine, which has to issue the next request until the IP address of the desired ...
Thomas, Kyle A., Julian De Freitas, Peter DiScioli, and Steven Pinker. "Recursive Mentalizing and Common Knowledge in the Bystander Effect." Journal of Experimental Psychology: General 145, no. 5 ...