I often ponder about what time really is. I tend to believe that things from smallest atomic/whatever particles to the most expansive universe, observed and not observed, are created order from/by a force which because of my puny part of the totality of universal existence . “Time’ for me is merely a brains ordering of experiences or pulses of existence.
Indeed, you might find this quote from Einstein interesting:
I agree with Roger Penrose (mathematical physicist, Oxford) - namely that we need a new kind of physics to resolve the obvious challenges of quantum entanglement (non-locality at distance) and more.
Quantum entanglement is where the quantum states of two or more objects have to be described with reference to one another regardless of the extent to which they may be spatially separated. Which is to say the measurement of one of two entangled photons will determine the other even if it is 10 kilometers away, on the moon, in another galaxy, etc.
In four dimensions (one temporal, three spatial) it violates the speed of light limitation. And as Penrose pointed out, it also suggests a paradox when both of the entangled photons are simultaneously measured. With two time dimensions, there is no issue.
By the way, because experiments (up to 10 kilometers) confirmed the phenomenon – there was a great deal of hope for superluminal communications. However, the no-cloning theorem forbids creation of identical copies of an unknown quantum state therefore no error correction, computing or communications at superluminal speeds. Even so, the non-cloning theorem and quantum entanglement offers a great solution for quantum cryptography, i.e. no one could “eavesdrop” on the quantum superluminal cryptographic key. The bottom line is that one must lay aside presuppositions of a timeline, arrow of time, speed of light limitation, light cones etc. when dealing with two or more time dimension theories.
From a theological point of view, the theories also suggest that God - being beyond space and time - sees past present and future all at once and moreover, that He has creative power over physical causation "in" space/time of however many dimensions. For instance, a change in the future instantly effects the past and present because they are concurrent on the time plane (or cube, etc.) And such a change would obviously be completely undetectable to observers "in" space and time.
No doubt such speculations involving two or more time dimensions have been fodder for many science fiction scripts as well as mysticism involving precognition, retro-cognition, remote viewing, etc.
But there are credible theories involving multiple time dimensions. Vafa's (geometric physics, Harvard) f-theory follows the Kaluza/Klein compactification model for extra dimensions (string theories) whereas P.S. Wesson's entails higher dimensional dynamics. The Wesson (physics and astronomy, Waterloo) Five Dimensional Relativity Two Times theory posits that the 1080 particles in the observable four dimensional universe are actually multiply imaged from as little as a single particle in an expanded time-like fifth dimension.
Fascinating theories ...