The problem has always been, who maintains the sanctity of the [finance] ledger?
“Can you just forge that ledger? So, historically the central bank would maintain the sanctity of the ledger or the fact that you have a certain dollar bill with a serial number on it maintains the sanctity of the ledger but now Bitcoin has the craziest answer you can imagine, but it turns out to work. Which is everybody has a copy of the ledger. So, everyone on the Bitcoin network who’s running a node keeps a copy of the ledgers from the dawn of Bitcoin until now and there is a testament to the computing power and memory that we have available in modern computers that people can do this at home.” –Nick Szabo on the Tim Ferris podcast 8 years ago
So, what’s the size of the entire Bitcoin ledger?
Bitcoin has been running continuously since 2009, that’s (currently) 16 years, and ALL the transaction data is less than 1TB.