There's no such thing as meaningful action without feedback. We could not conceive selfless actions without the attached feelings like blind people do not conce

There's no such thing as meaningful action without feedback. We could not conceive selfless actions without the attached feelings like blind people do not conceive color. Without the feedback, we would lack the right tools to discern worth doing from worthless. Fortunately, the common good is often perceived as worth doing, because the brain tricks us: behind a selfish action often lies a selfless outcome.