How the internet actually works, and why nobody is in charge of it
Hello, I'm Maneshwar, and I'm building LiveReview — a blast-radius aware AI code review built for your business-critical systems. Star us to help devs discover the project, give it a try, and share your feedback to help improve the product. You open a video and it starts playing in about a second. Somewhere between your thumb and that first frame, your request crossed maybe fifteen different companies' equipment, possibly an ocean, and came back. Nobody coordinated it. That is the part I find genuinely strange about the internet, and it is the part most explanations skip. They tell you the internet is "a global network of networks", which is true and tells you nothing. So let's actually take it apart. There is no internet. There are 75,000 of them. The single most useful thing to understand up front: the internet is not a thing anyone built. It is roughly 75,000 independent networks that agreed on how to hand traffic to each other. Your ISP is one. Your university is one. Cloudflare is one. They own their own cables and routers, they answer to nobody in particular, and they interconnect voluntarily. Once you see it that way, every weird thing about the internet starts making sense. The whole arrangement has three parts: The edge is everything that actually wants to say something. Your phone, a laptop, a server in a rack, and increasingly a doorbell. These are called hosts or end systems , and they split roughly into clients that ask and servers that answer. The access network is your on-ramp. Fibre or cable at home, the office network, 5G from your pocket. Its only job is getting you to the first router. It is also, almost always, the slowest part of the entire journey, which is worth remembering next time you blame a website for being slow. The core is the mesh in the middle. Routers and the links between them, and nothing else. No control room, no master server, no company that owns it. Nobody reserved you a line Here is where the design gets clever. Before the in