I would say that a system with some sort of binary evaluation that indicates whether it succeeded or not is receiving feedback. It could also be some kind of sliding scale - how close did it get?
Either of those might be useful for determining a good future direction to iterate in but that would surely depend on the nature of the problem and how it's possible to search for solutions. I'd still call it a feedback loop even if the evaluation wasn't enough to point in a specific direction for a further iteration though. YMMV.
I would say that a system with some sort of binary evaluation that indicates whether it succeeded or not is receiving feedback. It could also be some kind of sliding scale - how close did it get?
Either of those might be useful for determining a good future direction to iterate in but that would surely depend on the nature of the problem and how it's possible to search for solutions. I'd still call it a feedback loop even if the evaluation wasn't enough to point in a specific direction for a further iteration though. YMMV.