HISTORY OF BLOCKCHAIN
Digital currencies have actually been around since the 1980's. The first major one was called digi cash, but digi cash had a fatal flaw, it needed that centralized authority, that central intermediary to agree on who had send and what all of the balances were, which means they can still freeze your funds, reject your transactions and had complete control over the system, and of course which is the problem that we need blockchain for.
But why do Banks need central authorities? Simple, this is because of the double spending problem. Digital money needs some way to make su