Blockchain Expert Bettina Warburg said blockchain works because of "mutual distrust" exists between people. Blockchain in essence allows us to interact with each other in a decentralized way without the need for a central authority. In a rapidly advancing technological world, people trust codes or algorithms more than human beings, to the extent that we even stop trusting those central authorities that actually made things work in the past. How did we reach this extreme level of mutual distrust? Look back how and when Bitcoin was invented, you will get a clue.