To be pedantic, there was indeed an Internet in 1985, and Tim Berners-Lee had little to nothing to do with it. The precursors to the Internet dated back to the sixties, but by ’85 every core component of the Internet’s infrastructure was in place, from the purely technical through the social. Between USENET and Relay (which was the direct inspiration for IRC) we had the same forums and trolling, chat rooms and instant messaging, piracy and creativity and collaboration — albeit in less accessible ways than came later. In 1985 growing percentage of college students used it across disciplines, and a solid number of high school students Marty McCoy’s age were getting involved with it. I know. I was one of them.
Berners-Lee was instrumental in the development of http — not the first hypertext based protocol but one of the easiest — and used it to develop the World Wide Web, which brought graphics, simplicity and accessibility to the Internet. That, along with proprietary systems like AOL, brought the Internet in all its wonder and banality to a much broader audience, without a doubt.