The entire internet runs on these switches How does your phone, your laptop, literally every computer in the world actually think? The answer comes down to billions of… tiny switches. They’re called transistors. So here’s how it works. A transistor is basically this microscopic electronic switch that can either let electricity flow… or block it. That’s it. On or off. But here’s the thing when you wire these switches together, they don’t just turn things “on” and “off.” They start acting like logic gates little building blocks that can compare inputs, make decisions, and store information. Now imagine not ten, not a thousand but billions of these gates crammed onto a single chip, each one switching billions of times per second. Together, they form the circuits that do everything from opening Instagram to calculating rocket trajectories. And because they’re so small, the signal doesn’t have to travel far which means your phone can unlock instantly, stream video smoothly, or run in...