I haven't been understanding bitcoin for the longest time: It has been more than five years since I first heard about it. I tried to look it up, I can never quite get the overall picture, why it works the way it is.<p>I finally understood the bitcoin mechanism and I can explain the original paper well just two days ago. I feel dumb reading this paper. Intellectually, I think it's a hallmark of many great inventions in the 20th and 21st century: public-key cryptography (to verify transactions), micro economics - game theory (to incentive people to mine), hashing (bounty), macro economics (to combat inflation), distributed computing synchronization (to trust the system while not trusting any single computer), statistics (to combat fake chains). Only when one has all the pieces of the puzzle together then the whole thing is possible to conceive.<p>But I feel a sense of achievement when I finally figured the whole thing by myself. If you don't understand bitcoin, I think you should understand bitcoin as a hacker, even you don't need to use it or intend to store money in it.<p>I only own a small fraction of a coin, I'm not a risk taker. I'm not going to be rich from bitcoins, I have no reason to shill it with memes. It's unlike anything you have encountered before, notably that the only reason why bitcoin is worth money, is because we are better off with it. I do believe the world is a better place when everyone agrees that bitcoin has values and can be traded, because that means many people can buy their own "insurance" should wars happen, which they do. Your money might turn into paper, you might get killed if you smuggle cows, gold, and diamond when you're running for life, but no one can know if you have bitcoins.