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Paul Werbos on Backpropagation through Time

NATO — Identification of Potential Terrorists and Adversary Planning: Emerging Technologies and New Counter-terror Strategies (Vol. 132). IOS Press. (NATO workshop series)

New Technology Options and Threats To Detect and Combat Terrorism 

New algorithms and hardware technology offer possibilities for the pre-detection of terrorism far beyond even the imagination and salesmanship of people hoping to apply forms of deep learning studied in the IEEE Computational Intelligence Society (CIS) decades ago. For example, new developments in Analog Quantum Computing (AQC) give us a concrete pathway to options like a forwards time camera or backwards time telegraph, a pathway which offers about a 50% probability of success for a well-focused effort over just a few years. However, many of the new technologies come with severe risks, and/or important opportunities in other sectors. This paper discusses the possibilities, risks and tradeoffs relevant to several different forms of terrorism. 

Keywords. Predetection, terrorism, nuclear proliferation, cyberblitzkrieg, time-symmetric physics, GHz, deep learning, internet of things, backwards time, retrocausality 

Breakthrough Technology for Prediction and Control – CI, IOT, BCI and QuIST: Computational intelligence, CI, which includes deep learning, neural networks, brain-like intelligent systems in general and allied technologies, the Internet of Things (IOT), Brain-Computer Interface (BCI) and Quantum Information Science and Technology (QuIST). 

  1. Using the same type of desktop machinery which created three entangled photons for the Greenberger, Horne and Zielinger (GHZ) experiment, replicate the stunning preliminary results achieved in 2015 on an extended experiment supporting the time-symmetric reformulation of quantum physics. Because of the preliminary results so far and the strong underlying logic, I would estimate the probability of success at 80%. Note that success would also open the door to many other new technologies. Even failure would provide important new clarification about the physics and modeling requirements for advanced QuIST. 

  2. Enhance the existing approach to quantum ghost imaging by using that same GHz source, using two photons on the left to create the recorded image and detect when an entangled triplet is being recorded from, and the one on the right to reach into space to the object to be imaged. This is a mathematical task, mainly aimed at proving that coincidence detection can be done well enough just on the left-hand side without a need for some kind of detector out in space as required in conventional quantum ghost imaging. This is where most of the risk lies in this recipe. But even in the case of failure at this stage, it seems likely that other approaches to developing BTT, exploiting the lessons from step (1), would eventually be able to work.

  3. Attach the new triphoton ghost imaging system to a powerful telescope imaging the sun, so that the third photon goes backwards into the eyepiece. If step (2) works out, this would yield an image of the sun eight minutes forwards in time, unlike the usual images which are eight minutes old by the time they reach the earth. Because the sun is highly dynamic, this should provide a very clear demonstration that we can enter a whole new era in QuIST, and it should also supply some advance warning on solar flares, of practical value in itself. If this works, the value in upgrading world culture should be immense, similar in a way to the recent discovery of exoplanets, but much larger.

  4. Then attach the triphoton ghost imaging system to long and slow optical fibers, curving the light around, to allow such capabilities as a forwards time camera or BTT for use on earth, more or less making real the kind of possibility envisioned in past in science fiction. Following the strictest, safest procedures of science, one would normally not even talk about steps (2) through (4) in any detail, before step (1) is completed in a way which establishes more confidence and reduces legitimate uncertainty and controversy.

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