The nature of TIME
We live in a universe that has three dimensions of space that we have (nearly) free movement of. This is true except for the weak interaction of gravity and any physical objects that lie in our path. Now we also has a dimesion of time that behaves like one dimesion of space (along a line) except that it is perceived as past, present, future and each of us is stuck on one part of it and cannot stand still or go backward. Forward motion of time is constant on Earth (or very nearly constant) yet we find time going much slower as a child than as an adult. So it has an affect on perception and consciousness. This is found to be true through psychological experiements and from dreams and transcendental experiences (drugs, meditation etc).
Yet we are unable to consciously alter the flow of real time in a way analogous to how gravity affects space and time. According to Einstein matter affects space and time and the most extreme case (a black hole) traps both space and time (4 dimensions) to a singularity (0 dimensions). Since brain is matter it will be constrained by all physical laws (including quantum theories). Yet mind is not the same thing and hence we can experience or imagine a subjective change in time and space. It appears that what affects time also affects space. Hence, the dimension of time can be treated as another dimension of space (and some maths does treat it as the same).
However, if space and time are the same thing then would swapping a spatial dimension with a temporal one result in the same universe? Apparently not. Ditto if we had a scenario with 3 temporal dimensions and one spatial. Yet if I could step out of my own timeline I would be able to go into the past and future as easily as backward or forward in space. This would cause time paradoxes and seem impossible. Now if there is a link between mind (consciousness) and the affect of time and space (even in such a small area as within the body) then there may be a link between gravity and consciousness, or another fundamental force that moderates time and intelligent perception (and all other time dependent phenomena). This could both explain why reverse time travel in not possible and why theorists are fnding it so hard to devise a quantum theory of gravity. Thus a new maths may be needed to crack this problem.
Ever heard of the Scasis Paradigm (Dr Who)? he power of God or the Creator to change the content and evolution of the universe at will. Well the first to crack it would attain the status of God, the experimentor, the Creator and we would be part of a cosmic experiment. If God exists he/she/it would have arisen from a universe like this and if God does not exist then mankind may become God in the future.
(This is also used as an argument as to why we are alone in the universe - either way by experiment or by consciousness leading to universal awareness.)
(Note - this is not the same as attaining enlightenment or Buddhahood because it may not equate to having the free will to escape recurring existence or be everywhere everywhen external to our universe if other universes exist with different rules/contents/experiences.)