I still do not get the public ledger.
What can Block Chain do that universal Microsoft Excel cannot do?
Nice post, by the way.
Always nice to chat with someone who knows a subject really well, and enjoys talking about it.
It’s not so much a ‘public ledger’ as it is a ‘decentralized ledger’. There’s no one copy of it anywhere; it exists on tens of thousands of different nodes and is updated across all those nodes every 10 minutes or so, so it’s impossible to hack. No one can go in and fiddle with the ledger in a subversive way or the network would reject it. There’s no one single machine that can be compromised. You’d have to compromise the whole ledger, which is impossible.