On May 5, 2009 DARPA (Defense Advanced Research Projects Agency) announced that it is preparing to begin an exciting new research program that may be the most ambitious and direct effort by the United States Government to to push human technology closer to the edge of the awaiting Singularity. The program is referred to as Physical Intelligence, and DARPA is currently soliciting interested research groups to develop project proposals for submission. The ultimate goal of the effort will be to fundamentally understand the physical phenomenon of intelligence and to then demonstrate the characteristic in a man-made electronic or chemical system.
Although you might have considered taking on this problem yourself this weekend, it’s understandable if a week’s worth of yard work and Mother’s Day preparations took a critical priority. Leaving this project to large governmental agencies and massive academic and industrial collaborations may be the best idea for your personal work-load at this time.
The funding levels for the Physical Intelligence program have not yet been set, as they will be later determined depending on the details of winning proposals. This could be an effective blank check from the Federal Government supporting a potentially mammoth project that would do nothing less than transform humanity. Why go back to th Moon when we could instead solve one of the most fundamental questions of our species. In the meantime, America could certainly regain our stature of being the primary scientific center on Planet Earth.
What is particularly interesting about this solicitation is that DARPA has explicitly limited the theoretical framework from which researchers may pursue the solution to understanding Physical Intelligence. They make the bold claim that the phenomenon of intelligence emerges directly from thermodynamic processes in the human brain or an engineered machine. Any proposal that contains alternate viewpoints will automatically be rejected from consideration for funding.
At first, it may seem that starting with thermodynamics is too limiting for theoretical progress in modeling intelligent behavior. As a basic starting point, the science of thermodynamics looks at characteristics that emerge from a system composed of effectively infinite parts. For example, the measured temperature of your steak flaming on the grill is just the collective measurement of the motion of trillions of meat atoms and molecules. At other levels, the theory models the transfer of energy between systems and measures the slightly odd variable of entropy, which essentially characterizes how messed up the observed system is. In other words, the shattered glass just knocked to the floor by your coordination-lacking infant son has a higher entropy than it did moments before while sitting peacefully on the dinning room table.
But, we aren’t just talking about heat engines that convert a hot flame into mechanical motion and the phase transition we experience every day while boiling water into steam over a hot stove. Thermodynamics and the broader field of statical mechanics represent the fundamental physics that underlie all of the relatively new ideas of self-organization, complex systems, network architecture and many other concepts that are driving the latest in brain science. Maybe DARPA really is on to something theoretical and, even if they don’t know the answers to life’s biggest questions just yet, they certainly know how to keep their funding solicitations general enough to allow for a broad range of scientific collaborators to jump on board … if they are only brave enough.
The Physical Intelligence program is organized around three levels of critical milestones. The first step is to develop a mathematical theory of the thermodynamics of intelligence and then to represent this theory in a producible system. Second, the aforementioned engineered system must be built and successfully demonstrate intelligence. Third, and finally, additional tools must be developed and designed to further analyze and monitor the created intelligent systems.
The other key limitation to this solicitation is that proposers must be able to submit plans that cover not just a portion of these three milestones, but they must be prepared to take the project all the way to home plate. This is Nobel Prize territory, folks, and anyone who is prepared to tackle human species-altering projects must be ready for the ride of a lifetime.
The boldness of the program is nothing less than what would be expected from proud United States scientists, and the American society is certainly ready for another “One small step for man… one giant leap for mankind.” It certainly is an exciting moment to see the interest, dedication, and–of course, most importantly–financial backing of the Federal Government be honed onto the advancement of machines that match, or even exceed, the level of human intelligence that we effortlessly demonstrate every day.