What goes up must surely come down. This ideology was conned by the ancient form witnessing how brutal the Earth's gravitational force was to things that tried to defy its law. It's mercilessness was not respecter of weight size or identity, as long as something had transcended above the ground. The force of the earth latches unto them like the claws of a vengeful spirit wanting to take them back to the planes where they belong, even if it meant destroying this thing.
For this sole reason climbing through height was a troublesome ordeal, cause one would have to fight against the earth gravity trying to hold you down, even the all knowing scientist had to take a huge stress to their brains whilst trying to tackle this in order to provide working sources of aerodynamics.
If climbing up was one thing, then diving down a height was another.
