The miraculous thing about Tim Berners-Lee is that he was the perfect person for the job.
In 1989, when Berners-Lee first proposed the idea that would become the World Wide Web, exciting things were happening in the realm of computing. A new set of standards called TCP/IP were allowing previously isolated computer networks to talk to each other. These standards had become popular, particularly in the American scientific community. By 1989, TCP/IP was also just starting to be adopted by commercial service providers like CompuServe.