But how can you achieve consensus without a central authority? Nobody did know until Satoshi emerged out of nowhere. In fact, nobody believed it was even possi

But how can you achieve consensus without a central authority? Nobody did know until Satoshi emerged out of nowhere. In fact, nobody believed it was even possible. Satoshi proved it was. I assume there are other algorithms like paxos exists for distributed consensus. Also not sure if Satoshi proved consensus by proof of work.