He isn’t talking about the protocol itself, yes a ledger is understandable. What you are ignoring is the effect it is having on the world as people discover for once in the history of humanity we can have a completely auditable open money that has a finite supply, not forever increased and diluted when a rich person decides it is in their best interest to do so. This effect is quite wild and effects far-reaching. Elon, Square, Jack, El Salvador, the Chinese mining exodus, Tom Brady laser eyes, the Fed, my bank account.
How many wars could have been prevented if governments couldn’t have printed way more money than they had GDP for and then needed to start a war to try and “fix” it? This is the hyperobject we could be on the cusp of here.