Alright, but before you go let me tell you a little story, it'll only take a minute. Its called
The Voyage and Discoveries of Flagellan the Flatlander: A Cautionary Tail to Spacelanders
Long ago on a spherical expanding bubble (or at least what all Flatlanders would come to believe was a bubble), lived a young boy named, Flagellan the Flatlander. Most Flatlanders of his day moved about by little hairs that extended from their 2-dimensional bodies, but Flagellan was a mutant of sorts and was born with a single long hair protruding from his posterior which gave him the uncanny ability of traveling 100 times faster than his fellow Flatlanders.
At the time of his birth, it was generally thought all of Flatland was exactly that--a flat plane extending forever along the two axes of Length and Width, world without end. But in his youth, Flagellan postulated that the plane was not perfectly flat. you see there was another mutation of Flagellan--a pair of eyes, whereas all other Flatlanders had only one eye. Curiously, this mutation gave Flagellan the ability to see what he called "hypercurve"--an advanced form of depth perception.
Every Flatlander could see simple curve within the plane, for while all flat objects presented themselves to the view of Flatlanders as lines upon the horizon, the light of Flatland created a gradient shading upon curved and faceted objects which gave Flatlanders width perception. Flatlanders also had an intrinsic compass in their minds, which permitted them to orient themselves perfectly along the Length axis of north and south, and the Width axis of east and west. But Flagellan could sense more.
He was not able to see the actual curve of the plane, mind you, but he was able to see that the plane itself was oscillating in directions that he came to call "up" and "down". He told his parents of this perception and was whipped brutally by his father for "telling such lies." And after the beating, Flagellan wept in his room, listening to his father rail about his "mutant son," casting every dispersion at God and the universe for cursing him with such a monster with "two eyes and a tail!!"
It was there, in his bedroom that Flagellan was suddently struck with a remarkable inspiration. It was as if Someone was pouring light into his brain, but how could that be seeing that his brain was closed from the view of every observer? Yet the light poured in and suddenly, Flagellan knew something that no one on Flatland could imagine. The light--all light--was coming from somewhere outside the plane.
It suddenly occurred to him that the oscillations he could see were rather circular in shape and these circular patterns in the fabric of 2-space would spread and grow and interfer with one another. He was also able to detect that as the 2-space would move "up" and "down", "up" places were somehow brighter and "down" places were somehow darker.
This new knowledge filled Flagellan with a remarkable sense of joy. He knew no one would understand him, that the beatings from his father would only increase if he shared what he knew, so he slipped away from the home of his birth and set out to discover the meaning of "up" and "down".
He hadn't gone far, when he made another important discovery. He noticed that the gradient effect of light upon objects became darker the further away an object was. And so, Flagellan began to wonder whether the whole plane was bending ever so slightly in a downward direction. If such was the case, then the bright spot where any observer was located would be called "up", and as an observer moved, the "upness" of the world seemed to move with him.
"Wherever I go," Flagellan mused, "I am always "up" and everywhere else is always "down". It must be this way for everyone, but they can't see it. Even though "down" is really the only direction I go, I find myself up. I can go "down" in the west and yet I find myself "up" in the west. I go "down" in the east and yet I find myself "up" in the east. I go "down" in the south and yet I find myself "up" in the south. I go "down" in the north and yet I find myself "up" in the north."
And then it struck him, like his father's whip--only nicer. This relationship implied that if he kept going "down" in any direction, he would end "up" where he started. So Flagellan decided to circumnavigate Flatland. With the compass in his mind, and a few whips of his tail, he propelled himself at lightning speeds across the curvature of the spherical plane.
Wick paused for a moment. Crick's chin was resting in his front legs. Caramel shifted her weight, and slightly relaxed her right rear leg, her tail driving away the flies on her back.
"Did he come back to where he started?" Caramel asked, looking melancholy and thinking of the snows and her rider.


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