In gullivers travel what message does the author want to convey when he says 'an island below' and 'an island up in the air'? in third part

Swift's message is simple, as the two islands represent his attack on science and technology, and also serve to illuminate the distance between the government and the people. The government inhabits the island in the air and uses technology to control its subjects below. The king is so far removed, he has no idea what his subjects need or require, and the scientists are so immersed in their own concerns they need servants to alert them (flappers), accentuating their robotic, mechanical existence.