What is internet

What is the internet?
The internet is like a popular thing.Some satellites up there.I picture it in my head with like waves of internet going to the phone.Somebody told me a cloud once.The internet is a lot like plumbing it's always moving.Most people don't have any idea where the internet came from anddoesn't matter, they don't need to. It's sort of like asking who invented theballpoint pen,or the flush toiletor the zipper.These are all things we just use every day we don't even think about the factthat one day somebody invented them.So the internet is just like that. Many, many years ago in the early 1970smy partner Bob Kahn and I began working on the design of what we now call the internet.It was a result of another experiment called the ARPANETwhich stood for Advanced Research Project Agency Network. It was a DefenseDepartment research project.Paul Baran was trying to figure out how to build acommunication system that might actually survive a nuclear attack.So he had this idea of breaking messages up into blocks and sending them as fastas possible in every possible direction through the mesh network.[whoosh]So we built what eventually became a nationwide experimental packet network,and it worked.[electronic music with heavy beats]Is anybody in charge of the internet?The government controls it.Elves, obviously elves!The people to control the Wi-Fi because then no Wi-Fi, no internet.T-mobile, um, Xfinity,Bill Gates[pause]Right?!The honest answer is well nobody and maybe another answer is everybody.The real answer is that the internet is made up of an incredibly large number ofindependently operated networks.What's interesting about the system is that it's fully distributed. There's nocentral control that is deciding how packets are routed or where pieces of the network are builtor even who interconnects with whom.These are all business decisions that are made independently by the operators.They are all motivated to assure that there is end-to-end connectivity ofevery part of the network because the utility of the net is that any devicecan communicate with any other device; just like you want to be able to makephone calls to any other telephone in the world.There's nothing like this that has ever been built before.The idea that what you know might be useful to somebody elseor vice versa is a very powerful motivatorfor sharing information.By the way that's how science gets done, people share information.So this is an opportunity for people to think up new applications,maybe program them as apps on a mobile phone,maybe become part of the continued growth of the infrastructure of thenetwork to bring it to people who don't have access to it yet; or just make useof it on a day-to-day basis.You can't escape from contact with the internet so why not get to know it anduse it.