The nature of time has been the fundamental area of research for Marshall since 2000. He has given numerous lectures on it, participated in debates and conducted experiments dealing with the physics of time. He is a staunch defender of the idea that time is a real dimension connected to space, just as Hermann Minkowski described, and has even conducted an experiment to prove it.
Marshall has found fault and flaws with all arguments against time being real, including leveling scathing criticism against physicist Julian Barbour's book, The End of Time. He has proved to be a force to be reckoned with in all areas where time is applicable, including that of psychology, due to his disproving Baylor College of Medicine's David Eagleman's study that duration dilation is a result of elongated memory. Marshall showed instead, using technocogninetic analysis, that the key instruments in Eagelman's experiment were flawed to the extent of rendering the results inconsequential. This has been proven even with high school physics students analyzing the data and matching it with video of Eagleman's tests in action.
Marshall's work into the reality of time has even set him against renowned astrophysicist Stephen Hawking, again and again, with Marshall repeatedly finding flaws in Hawking's work that have stood up to scrutiny. In fact, not one of Marshall's objections to Hawking's ideas has been criticized as wrong by a single physicist. It was this record, of accurately finding flaws in Hawking's work, that led Marshall to publicly accept Hawking's 2008 announcement for a $100 bet against the possibility of the discovery of the Higgs Boson and dare to raise the physicist's bet by $900. July 4th of this year, scientists at the Large Hadron Collider at CERN announced that they had found the elusive particle and Hawking announced that he had lost $100, but to the University of Michigan's Gordon Kane in a private arrangement in 2000 http://www.prlog.org/
Marshall has been a noted supporter of research into time travel, often penning articles on the subject himself. He was once introduced to Max Tegmark as another "Everett man" indicating that he is a believer in the Everett/Wheeler hypothesis or "many-worlds"
Marshall had objections to Princeton physicist J. R. Gott's idea of a self-creating universe, employing a closed time-like curve at the beginning, which were original aired during an appearance by Gott on a late night radio program (see 6:44 on the counter of the video) which Gott failed to address during the broadcast. However, during the recent Mars Society conference in Pasadena, California, Marshall and Gott had a meeting of the minds on the matter and have agreed to look jointly at inconsistencies that Marshall has discovered in the structural and behavioral descriptions of closed time-like curves. Such an investigation could result in a new understanding of time as well as the theoretical basis for time travel itself.
Currently, after consulting with members of the Mars Society interested in advanced and experimental physics, as well as with physicist Fred Alan Wolf, Marshall has started the work testing his STDTS proto-warp drive technology in a torsion configuration, looking for effects related to twisting space and perhaps time as well. These would mirror the effects in general that are hoped for by University of Connecticut physics professor, Ronald Mallett, who became famous for patenting a design for his claim of the world's first time machine. He has yet to build the device, however, and its design is in no way directly related to the configuration, design or application of Marshall's http://www.prlog.org/
Marshall hopes to provide interesting discussions and research results to the Philosophy of Time Society and become a leading contributing member.