An >immutable< ledger helped me wrap my head around it better. The immutability makes software chip away at arenas that traditionally are the providence of law/contract/social/administrative/governance institutions. It allows for replacing middle men and automate processes that were locked up in the only form of "trust" that we knew how to facilitate (via layers of humans).
all ledgers imply relative immutability, with the security of the immutability having a cost that is dependent on the security level. There's a really large cost to having the immutability level of the blockchain. Is it worth it? Probably not in most cases.
