That's all well and good to ask as a what if, but in terms of practical applications, the vast majority of the time you want to trade the other way around whene

That's all well and good to ask as a what if, but in terms of practical applications, the vast majority of the time you want to trade the other way around whenever possible - you want your system to work reliably. That's the cornerstone of any project that wants to be useful for others.