Great scientist and friend Joshua Lederberg passed away 2 February 2008. Josh recruited Jesse to The Rockefeller University in 1984, promoted him in 1989, and supported the formation of the Program for the Human Environment in 1993. Jesse was honored to offer recollections of Josh at his memorial service in February 2008 and a tribute to Josh’s foresight at the January 2009 Rockefeller symposium celebrating his contributions. The tribute highlights Josh’s astonishing anticipation in 1978 of the growth of email and the Internet.