Yes, that’s what I think. This feedback loop is like filling up an object. However, the object (example: a cup) can be flat, shallow or deep depends on what cup we are referring to.
Moreover, each link in DO does not alway have the same level or intensity. The intensity to trigger feeling -> craving is not the same with the intensity to trigger contact -> feeling. To make thing more complicated, the intensity to trigger feeling -> craving itself is also not the same in all cases and in all persons.
Some extremely simple examples:
When I see a beautiful girl, pleasant feeling arose in me, craving may immediately arise in me. However, craving may not arise in you in the same situation.
When I see a beautiful flower, pleasant feeling arose in me, but I do not crave for it. I do not think that I should have that flower even I feel pleasant.
Very good observation. Contact is very special in Buddhism, it is defined in special way: “In dependence on the eye and forms, eye-consciousness arises. The meeting of the three is contact.”
We can see the eye (six-sense bases) is the condition for contact. However, if we look closely, the eye also needs its object and eye-consciousness to trigger contact. Without object(forms) or eye-consciousness, we do not have eye-contact.
We may say that eye-contact is sufficient to trigger feeling born of eye-contact (level or intensity = 0). It is like an always full cup (or flat cup), as soon as we pour more water into it, it will immediately overflow. This is very interesting, and we can see why we should guard our six senses.
Eye-contact is the meeting of eye, its object and eye-consciousness. The eye is from name-and-form, and eye-consciousness is from consciousness. Contact is maintained by this interaction between name-and-form and consciousness to meet its object. This is the loop back that I have said. If we remove one of them, contact will not arise.
Therefore, if seeing form that delight the mind (give pleasant feeling), we should not follow that pleasant feeling (or should not continue seeing that form). If seeing form that give no delight to the mind, we should also not follow that unpleasant feeling. This is how we cut off the loop.