> Not that I’m saying MMOs need blockchains; but it turns out Proof-of-Work ledger technology had a use case here! (No wonder Amazon now offers a similar servic

> Not that I’m saying MMOs need blockchains; but it turns out Proof-of-Work ledger technology had a use case here! (No wonder Amazon now offers a similar service: QLDB). For one, QLDB isn't proof of work. It's centralized: if you think you need a blockchain within your own data center to establish consensus, you don't. Blockchains are only useful when there is no central authority, which isn't the case with (all?) MMOs. Badly written blockchains have double spend issues. Video games with race conditions and no locking controls have duping problems. Blockchains only manage to eliminate the centralization (in theory), not the bugs.