> There's a huge savings in accepting payments in a form that the buyer can't reverse. Bitcoin just kind of flips the problem, it doesn't solve it. In a world

> There's a huge savings in accepting payments in a form that the buyer can't reverse. Bitcoin just kind of flips the problem, it doesn't solve it. In a world where payments can easily be reversed, sellers take on all the risk. In a world where they can't be, buyers take all the risk. You can get pretty far with a reputation system, and in a market with many more buyers than sellers it's nice that now only the seller's reputation matters. But for a lot of people there's still benefit in having a trusted middleman like Paypal.