Before starting the Mastering Bitcoin pathway, I thought Bitcoin was mostly about sending money online and watching prices go up and down. I knew the basics, but I didn’t really understand how Bitcoin actually works under the hood. This learning journey completely changed that. One of the biggest things I learned is that Bitcoin is not “magic internet money.” It is a carefully designed system built on mathematics, cryptography, networking, and game theory. Every chapter felt like opening a door into a new world. At first, terms like private keys, UTXOs, scripts, mempool, and consensus sounded complicated, but over time they started making sense. The most surprising part for me was realizing how simple some Bitcoin ideas are once you break them down. For example, learning about private and public keys helped me understand why Bitcoin ownership is really about controlling cryptographic keys, not “holding coins” in an app.…