So you agree, bitcoin's fast, like checks in the mail? or?
Stop with the false analogies. Bitcoin is faster than anything available from the traditional system.
Not joking, explain the difference between me subscribing to a magazine and mailing a check, and your 0-confirm transactions. Penny Stock Weekly won't be able to spend the check I sent them until it clears, your trading partner won't be able to spend the unconfirmed transaction. Where's the difference?