... the goal of Cobalt is NOT to speed things up. That's just a likely side effect. It enables greater UNL diversity and satisfies a stronger theoretical security definition. All blockchains are atomic broadcast algorithms. Atomic broadcast is just the problem of agreeing on an order for transactions as they arrive. - Ethan MacBrough
...Atomic in the sense of atomic broadcast means that if I write down that tx A came before tx B, then so will everyone else...The atomicity I was referring to is about ordering transactions, which doesn't necessarily imply (nor is it implied by) anything about transactions being "all or nothing". - Ethan MacBrough