[cassianoleal]

> is there a point where we can say that it is in a perfect state

I suspect it's asymptotical. You'll need to determine at which point it's close enough to perfection to stop improving, or just let it rip to infinity (and never benefit from it, probably).

[johnisgood]

Yeah, fair enough. I am interested in cases where we do not know what we are looking for exactly, or rather, we do not know exactly what "perfect" is. When we can define the state we want perfectly, then we have an easy job, but what if we cannot?