Delbruck and his search for the physics of emergence
This is very interesting to me, because in my studies I am reasonably sure that I have seen the shadow of the same phenomena although I wouldn't describe it so much as a force as I would a complex set of rules of emergence in interacting systems. Nevertheless, I do believe it is a physical phenomena that should be studied within the context of physics.
I have used the term "intelligence vector" to describe this set of physical laws in the past. The basic idea is this: Any time there is communication between systems (whether they be atoms, birds or galaxies), the system exhibits emergent behavior that cannot be isolated to it's constituent parts (the whole is greater than the sum of it's parts, 1+1>2). The nature of this emergence itself appears to be anti-entropic (often in direct contradiction to our assumptions from thermodynamics), providing a vectored set of interactions towards order. While this may seem anti-intuitive and perhaps even in violation of common sense (e.g. why should interacting particles be anti-entropic), even the most basic thought experiment can reveal the truth of it: If you take a system of atomic gas in a vacuum and provide enough time, the gravitic interactions alone will cause the atoms to clump into a solar system, perhaps even clumping enough in the central gravity well to pass the mass threshold required for fusion, igniting a star. This is a well understood and well accepted concept by the same scientists who live and die by thermodynamics and yet the process itself is clearly anti-entropic. That and many other similar phenomena are ignored by scientists everywhere, or handwaved away by claiming that the gaseous state of the system is more ordered than planets, moons and star providing energy that powers potential life on the planets (a claim that is difficult to stomach).
In life, this effect is overwhelming and in our faces. If we examine the most basic form of information processing wetware in terrestrial life, the biological neural net, we find very simple information processing systems (neurons, dendrites, synapses) that when linked together are able to do profound information processing. The pattern recognition and differential calculus that such nets are inherently capable of processing cannot be deconstructed down to the constituent components. The emergent capabilities of these systems comes completely and fully from the act of interaction between the parts.
A direct manifestation of the intelligence vector.
Drilling down to the level of the cell, it is clear that the machinery working within the cell are highly ordered, highly dynamic and energetic and participating in complex interactions and information exchanges both within the cell and outwards with other cells. Analysis of such interactions through the use of emergent ideas should hold promise of breaking the secrets of cellular automata (the living kind), but this is where I think Delbruck was probably obsessed; There is a boundary in living cells between the basic automation of the smallest machinery of life and the mechanics (quantum mechanics?) of the atom. If one could study that boundary, I think he believed, one could extract the essential laws of the force that automates life.
While I think he was wrong, because i don't think there is such a force, I also think that he was seeing the shadow of something real, in that there are in fact physical laws that manifest at that boundary to move from atom to goal-directed automata. But we can just as easily study those in mathematical systems using game theory, artificial life in simulations and whatnot. Here, the study of artificial intelligence, evolution, emergence and molecular physics merge into perhaps the most profound set of physical laws that mankind will ever embark on understanding. In this puzzle lurks basic physical laws that should show conclusively that the universe not only allows intelligence but is itself structured to ensure it exists...