Is There a Difference Between Costless and Costless?

There isn't yet anything to be known until the choice in the original positions may. So it seems that there's a difference if we're thinking about expected value and what the chances are of certain things occurring when you're dealing with things that are costless. The social contract is a specialized device developed to answer a particular question, a particular problem. But asking people who have to make very important decisions should not make it veiled in ignorance.