Today's Waypoint
The World Wide Web: Tim Berners-Lee's Gift to Everyone
“In 1989 a physicist in Switzerland wrote a memo proposing a system for sharing documents. His boss wrote 'vague but exciting' on the cover. Tim Berners-Lee could have patented his invention and become the richest person on Earth. He gave it away for free — and that decision changed what the internet became.”
More Waypoints
What Is an Operating System?
Before Windows, using a computer meant typing every single instruction in exact text. Get one character wrong and nothing happened — no error message, no suggestion, just silence. Then a mouse arrived and changed everything.
Why Is the Speed of Light the Universe's Speed Limit?
Light travels so fast it can circle the Earth 7.5 times in a single second. And yet it still takes 8 minutes to reach us from the Sun. More strangely: nothing in the universe can ever go faster — not even a little bit.
Why Does a Year Feel Shorter Every Birthday?
A six-week summer holiday feels endless at age 8. Ask a 40-year-old what their last summer felt like — 'it went so fast.' The summer was the same length. Something else changed.
IP Addresses: How Every Device on Earth Gets a Number
Right now, your device has an address. Not a street address — a number. Every single device connected to the internet has one, and without it no data could find its way to you. There are only 4.3 billion possible addresses. We ran out.
How a URL Works: What Really Happens When You Press Enter
You type a web address and press Enter. In about 200 milliseconds, a complete page appears on your screen — text, images, layout, all of it. That 200ms hides one of the most elegant pieces of distributed engineering ever built.
From Code to Cloud: How a Web App Gets Built and Deployed
The Waypoint article you're reading right now started as text in a code editor on someone's laptop. Then it became a git commit, a GitHub push, a Vercel build, a bundle of files on servers across six continents. This is how software gets from a developer's head to your screen.