What is the Internet?

Many people have varied ideas about what the internet is, picturing it as satellites, waves, or even a cloud. It's often compared to plumbing because it's always moving, and most users don't need to know its origins, much like everyday inventions such as the ballpoint pen or zipper.

The internet began in the early 1970s, designed by Vint Cerf and Bob Kahn, as a result of the ARPANET experiment. This Defense Department research project, inspired by Paul Baran's idea for a nuclear attack-resistant communication system, involved breaking messages into blocks and sending them through a mesh network, eventually creating a nationwide packet network.

Contrary to popular belief that entities like the government, T-Mobile, Xfinity, or Bill Gates control it, the internet is controlled by nobody and everybody simultaneously. It's composed of numerous independently operated networks, making it fully distributed with no central control over routing or network infrastructure decisions. These are business decisions made independently by operators, ensuring end-to-end connectivity.

The internet's utility lies in its ability for any device to communicate with any other device, a unique system never built before. The motivation to share information, much like in scientific endeavors, is a powerful driver. This provides opportunities for new applications, app development, expanding infrastructure to those without access, and daily use. As contact with the internet is unavoidable, understanding and utilizing it is beneficial.