21. The most influential modern physical theories of consciousness are based on psychology and neuroscience. 22. This would imply an infinite sequence of physical theories . 23. Ultraviolet divergences remain a key feature in the exploration of new physical theories , like supersymmetry. 24. :There are indeed physical theories with more than 4 dimensions but they are all speculative. 25. One of the relationships that can exist between these different physical theories is called S-duality. 26. This theory is now well known as the Physical Theory of Diffraction ( PTD ). 27. World 3 includes physical theory as a particular case. 28. Such mathematical physicists primarily expand and elucidate physical theories . 29. Methods founded in physical theory tend to use thermodynamic cycles, a concept from classical thermodynamics. 30. The problem is the modern physical theory of nature prepares for simple and modern technology.