I have a different take on this, only half joking.
What if time is a free variable - it can move forward and backwards freely, perhaps like a drunkards walk? To a conscious being, any memory of having been at time t will be erased when t decreases. When t increases again, but you'll have no memory by which to detect the revisitation.
I know that I just postulated that there is a time sequence by which the motion of time can be described. But that is only to make the idea graspable to our ordinary sense of time.
One interpretation of what I described is the slab model of the universe where time is just another axis and the evolution along that line is fixed. Another interpretation would be that as time moves forward and backwards the state of the universe is free to change. In either case, our perception of our personal timelines would always appear to be unidirectional.
What if time is a free variable - it can move forward and backwards freely, perhaps like a drunkards walk? To a conscious being, any memory of having been at time t will be erased when t decreases. When t increases again, but you'll have no memory by which to detect the revisitation.
I know that I just postulated that there is a time sequence by which the motion of time can be described. But that is only to make the idea graspable to our ordinary sense of time.
One interpretation of what I described is the slab model of the universe where time is just another axis and the evolution along that line is fixed. Another interpretation would be that as time moves forward and backwards the state of the universe is free to change. In either case, our perception of our personal timelines would always appear to be unidirectional.