You're absolutely right - I should have called that out more. Ethereum can be used to represent the ownership of any item (property title, ticket, claim for fi

You're absolutely right - I should have called that out more. Ethereum can be used to represent the ownership of any item (property title, ticket, claim for fiat currency). Some will inject a third-party you need to trust (a custodian who holds dollars), while others may not (the digital ticket as @daoland highlights). You can also define ownership broadly, where it might be as simple as the "ownership" (right) to vote (e.g., corporate governance decision, poll, etc). While it's not the primary use today, I could see tradeable tokens to represent various real world rights (to land, to tickets, to voting) being an area for much further experimentation. I do think there's a question if confirmation times need to be low on the blockchain itself (with its attendant risks) - as Lightning in Bitcoin shows an example where this is injected on top. This really is a broader debate about what should live at the lowest layers of a blockchain stack and what should be higher up (disclosure, I specialized in networking, and so see some parallels to the debates in the early years of the networking stack). Another interesting area for exploration is what should live on the blockchain, and what should live off, given the cost of blockchain storage.