How can any Earthbound creature, living on on solid land
possibly understand what it is like to live in three-dimensional world?
Is there any way for a land-bound creature,
restricted to moving in only two dimensions,
to possibly imagine the freedom of a three-dimensional world,
surrounded only by oxygenated, buoyancy-sustaining liquid,
where the solid boundary is below or well below,
the dangerous surface is far above,
and motion is easy in all SIX directions.
We feel very claustrophobic when constrained by a narrow, one-dimensional tunnel,
able only to crawl forward or back;
imagine the claustrophobia of a fish out of water, unable to move up or down.
Our own lack of buoyancy restricts our motion to only TWO dimensions
A 2-D creature, encountering a small body of water
regards it as an obstacle to be forded or bridged over,
and for a larger body of water, one must either float
across the top of it or fly above it to reach land on the other side.
How can a 2-D creature, surrounded by gaseous atmosphere,
possibly imagine the exhilarating freedom of
unrestricted motion in three dimensions,
and where the solid boundaries are usually far away and well below,
and there is no such thing as a gaseous medium
(except for occasional rising bubbles)
until on ascends to the upper limits at the surface of the world.
It must be an unbearable nightmare for a creature of the sea
to imagine having its body placed upon a solid surface,
surrounded only by the unbreathable gasses of space above,
and no liquid medium to provide buoyancy.
The idea of being pressed directly into the solid ground
by the deadly force of gravity, must be terrifying indeed!