What is the World Wide Web?

People seem to be worrying that people do not know the difference between the World Wide Web and the Internet. GET OVER IT!
English is governed by changes of usage over time, not by pedantic adherence to "correct" meanings. Technical differences in concept between the Web and the Internet are, quite properly, irrelevant to most people.
If we restricted words to their "correct" meaning then most conversation by any English speaker under 60 would have a red line through it!!!