He also suggested that hiding transaction ledger histories (eventually in the same thread coming to the conclusion that a combination of ring signatures and stealth addresses, a la Monero, might be the mechanism to do so) if possible to sanely implement, would be the basis of “a much better, easier, more convenient implementation of Bitcoin”. Today the Bitcoin puritans say that Bitcoin doesn’t need privacy or fungibility, because it is a “store of value”.
https://bitcointalk.org/index.php?topic=770.msg8637#msg8637
