They say a horizon is a line where the sky touches the ground.
This is what they see, and this is what they say. But they could think for a while before they say something, for a horizon is a line which can be seen, but which does not exist – it is known, vastly and commonly, the ground does not touch the sky. It looks like what we see is much more important than what we know.
Here we should precise some details. Our language is not the only one which sets traps for us. So do our eyes. And first of all so does our mind. Yes. Our mind is a real trickster, no doubt it is. And what a joker!
Now, it is not commonly known, it is commonly not known, that there is the ground (the earth), while there is no sky. The sky has the same status as the horizon line – we can see it, but it does not exist. In fact, the sky is but a colour. However, we will not discuss right now and right here what colour is and what colour is not. Nor what blue is, or grey... There is no sky, but there is the air. The air does exist, but we can't see it – we can see the sky, but it doesn't exist. It happens so. Neither here, nor now, we will discuss whether it happens often or seldom, whether it is a unique case, very specific, or maybe a rule, a phenomenon quite boring due to its commonness.
The air does exist and it touches the ground. Everywhere. In every place. And if so, then we should speak about a plane of contact, although we know a plane consists of lines, and lines consist of points.
It is different in Liberland. A bit different. In Liberland the sky is the ground. In Liberland Heaven is the sky, while Earth is the ground. Thus Earth is Heaven and vice versa. (It is necessary to add vice versa just to avoid any misunderstandings.)
Is the sky the air? Rather not. If there is no sky, then it can not be anything. Besides, the sky can be seen, while the air can not be seen. Can anything invisible be visible in the same moment? Well, we won't give a firm answer bringing us no doubts, for first we should ask if there is any air in Liberland. However we will not ask this question right now, because it is not needed right now. If the ground is the sky and the sky is the earth, then we don't need the air at all to solve the problem of a horizon.
If the ground is the sky and the sky is the earth and the earth is the ground, it means the sky touches the ground and the earth touches the sky everywhere, in every place, on the whole plane, on the whole solid. This would mean the horizon is everywhere. But it is not.
It is not like that, because the horizon is not the contact line between the sky and the ground. The horizon is the border, the limit. What is beyond the horizon can not obtain by our eyesight. Nor by our mind. The horizon is a line where obtainable touches unobtainable, where the area covered by our eyesight touches the area which our eyesight can't cover. As well as where the area covered by our mind touches the area not covered by our mind. This border is not steady. It moves constantly. It keeps wandering with our eyesight, with our eyes. It keeps wandering with our mind.
It is not like that in Liberland. In Liberland the horizon is firm, stable, constant, immobile. It is a border which can be trespassed easily by eyesight, hearing and mind. So, it is a border between what and what? It's hard to say and to write. Maybe between Liberland and non-Liberland? Maybe. Probably.
The horizon in Liberland is not round, because it is not a circle. But it could be a circle. Sometimes it even is, however very rarely, so rarely it would be better to write: one day it would be a circle. Most often, almost always, the horizon in Liberland is rectangle. It can happen it has more or less angles than four, but it happens really very seldom, though more often than the total lack of angles.
Due to this fact, the horizon here can be easily trespassed, thus one can easily fall into an abyss. In non-Liberland one can not fall into an abyss, since one can not reach the horizon. Yet this does not mean Liberland is a dangerous land while non-Liberland is secure. Trespassing the horizon is absolutely safe, because the abyss we fall into, like any other abyss, has no bottom, is bottomless, so we will not get broken and crash into pieces. Falling into this abyss is just a kind of flying. If we find good and friendly currents it can happen we will fly around Liberland and come back from the other side. But it can happen we will not find helping currents and we will not come back to where we fall down, but we mustn't draw the conclusion the horizon can be trespassed only one way – such a conclusion is absolutely wrong.
It's something extraordinary, though not in Liberland, that so rigid and firm shape of the horizon does not determine the shape of what is inside. The interior of this rectangle is not a rectangle – it's amorphous. And not flat. Inside this rectangle, or a polygon, writing more precisely, can be a bottomless abyss absolutely amorphous. Can be and is.
It means, trespassing here the horizon we don't fall into the abyss, but we jump out of the abyss. We jump from one abyss into the other.
This is how it is here.

<<<