content: I'm not an expert, however I'll give it a shot:  Imagine a system where you have to transact with someone, a transaction is not limited to currency, even this is a transaction of words/thoughts.. now traditionally this message is being uploaded on the Voat servers (thanks for keeping this place up guys) and therefore if someone wants they can modify or change this. Imagine a bank freezing your bank account or censorship on Reddit. However what blockchain does is decentralise the server and stores it in every server as a series of interactions. E.g. You get a salary you spend that salary on getting a car, the car salesman takes his wife for dinner, the waitress who got a tip Is robbed and raped by a mudslime on the road, who uses this money to buy crack in the name of his military general (the a**ah), and so on. Now this chain wouldn't have been possible if you hadn't gotten a salary, (the waitress would've just been raped and not been part of this story, part and parcel). However this entire series is recorded not just on a central Jew bank, which can decide to say that the mudslime didn't rob her. This entire chain of events is recorded on thousands of serves, and each time a transaction takes place each old transaction is checked. Now since multiple transactions take place in the world, we need a system to compute them and arrange them as a chain, which is where mining and problem solving come in place for security etc. However fundamentally as a user you just need to know that he blockchain is decentralised,can't be censored and you can attach multiple things on top, currency or social network or anything else.