What if we take into account that the amount of atoms in a sensitive living being is enormous? They form cells, and these, in great amounts too, form tissues; and these, organs; and these, a living organism. What if we take into account that the amount of cells in our nervous system is incredibly large? May a large number of nervous cells display interaction modes that are not observed in individual cells? May sensation be explained resorting to the potentiality of large numbers?
For new interaction modes to appear when several individual entities become together, those entities must have appropriate interaction modes themselves:
One or some of them in the group interact with their environment, and by doing so they suffer a modification “A”, according to their individual “nature”. The other entities which are close to them react to such modification in a determined fashion and acquire another modification “B” themselves (always according to their “nature”). Something similar happens now to their neighbors, and this way an interaction chain develops. It may happen as well that the interaction chain forms a loop, as the first entities in the chain -surrounded now by modified entities-, change their reaction mode “A” to “ A’ ”. If this kind of orchestrated interactions as a whole produces a change in the surroundings of the group, then this is what we call an “emergent interaction mode” of the group, and we begin to see the group as a system.
Evidently the emergent interaction mode is observable in its effects (otherwise it could not be called an “interaction mode”), and it might be observable too in its development as an orchestrated symphony of individual interactions. The new interaction mode is the result of a dynamic structure that has taken form. But the associated sensation, if any, cannot be observed in any way; therefore, it is not an “emergent interaction mode” itself.
Nevertheless, if the emergent interaction mode is the object of sensation, it could be said that sensation has been explained meaning that its object has been explained. But nothing more than this.