TWO-WAY MEMORY

In Lewis Carroll’s Through the Looking Glass, and What Alice Found There (1871),  the White Queen says to Alice, “The rule is jam (food) tomorrow and jam yesterday, but never jam today.”

“It MUST come sometimes to ‘jam today,’” objected Alice.

“No, it can’t,” said the Queen.  “It’s jam every OTHER day.  Today isn’t any OTHER day, you know.”

“I don’t understand you,” said Alice.  “It’s dreadfully confusing!”

“That’s the effect of living backwards,” the Queen said kindly.  “It always makes one a little giddy at first---“

“Living backwards!” Alice repeated in great astonishment.  “I never heard of such a thing.”

“--but there’s one great advantage in it, that one’s memory works both ways.”

“I’m sure MINE only works one way,” Alice remarked.  “I can’t remember things before they happen.”

“It’s a poor sort of memory that only works backwards,” the Queen remarked.

Being able to remember not only the past but the future as well is an intriguing thought.  But how, beyond living life in reverse like the White Queen, would that be possible?

One way would be if the past, present, and future existed all at once.  According to physicist Albert Einstein’s theory of relativity, the drama of the world is “played out” not on the three-dimensional stage of space, with time acting as an unchanging metronome, but on a four-dimensional stage of space-time. 
 
This way, just as every location on the surface of the Earth already exists, so too does every event that has ever happened and ever will happen already exist.