Portal 2: The Digital Handshake

The Internet Needed a Handshake Imagine a giant notebook shared by millions of people around the world. Every transaction is written in this notebook. Nobody owns it. Everyone can verify it. If someone tries to cheat, they would need to change millions of copies at the same time, which is nearly impossible. Why This Matters Transparent Secure Open to everyone No central authority This shared notebook is what powers modern cryptocurrencies. Action: Watch a simple animation showing friends sharing the same notebook.