 What is ironic about Eric and Nada's desire to return to nature?
It is especially important because it stylistically forecast a later trend to accept the background for granted, regardless of the quantity of wonders, and proceed with the story. Even though the whole world had grown up into a city, the birds were extinct, there were no wild flowers, and no one had time to bother about sunsets. If we could only have lived a thousand years ago, when life was simple and natural, when men hunted and killed their meat, instead of drinking synthetic stuff, when men still had the joys of conflict, instead of living under glass, like hot-house flowers." It would be so thrilling to begin life like the characters in your stories, to get away from this hateful civilization, and live natural lives.
 They can only do so using the most advanced modern technology
 They can only do so using the most advanced modern technology  Once they experience the return to nature, they don't know how to survive  Their current residence is similar to what it would be like on Venus  Their vision of nature is unrealistic and based solely on images from fictional novels