Compared with other sci-fi people, Clark seems to make better use of irony and black humor. Whether it is the eccentric and lovely alien in When in Rome, the Hercules in Squirrel Orchid, or the self-righteous thief in Infinite Eternal Time, these characters have become ridiculous and intriguing in Clark's works.

Science fiction works always talk about exploring space, conquering the universe, traveling through time and space and the end of the world. This book is no exception. Clark's absurd and humorous storyline makes people think about some actually heavy topics with a very relaxed mood, such as world creationism, such as the theory of human destruction. Judging from this collection of short stories, Clark holds a positive attitude towards the establishment of diplomatic relations between earthlings and aliens. The aliens in the book are very kind and even remind us to help the doomed earth people. This reminds me of Hawking once said (through his intelligent wheelchair, of course) that I believe there must be other intelligent life in such a vast universe, but I don't want the government to find them (in fact, the US government has been sending signals to aliens for many years). Think about it, it took us years to find them. If they can really land on the earth by spaceship, they must be many times smarter than us. We can see what attitude an extremely advanced alien race will take towards backward indigenous people when white people land on the American continent. Conquest is human nature, and we have no reason to believe that alien races do not have this characteristic.

Scientists always take the existence of water as the standard for finding extraterrestrial life, which is the standard for life on our planet, but what if there are biological species that can survive in extremely harsh environments? Now scientists in the United States have found that they can survive well in the high-concentration acidic environment produced in nature (its acidity is equivalent to high-concentration hydrochloric acid), so there may be alien life in places like Jupiter where hurricanes continue all year round and sulfuric acid storms are frequent. They may be tiny microorganisms, and our space probe may have met them at some time, but they just passed by inadvertently.

So what is the life form of the earth people in the universe? Maybe we are smarter than most other extraterrestrial life, because they are all microbes, and we have a brain that is not too stupid; Maybe we are simply microbes in the eyes of extraterrestrial intelligent life, so fragile and backward, just like small wildflowers quietly opening on the roadside, they don't care at all.

At present, astronomers have come to the conclusion that in the distant future, the earth is doomed to perish, and before that, human beings have already disappeared. A dead, cold earth will be sucked into the star that gave birth to it by the gravity of the sun, disappear in a huge explosion, and return to the state before the formation of the earth-a mass of particles and stardust.

The desire or ambition of human beings to explore the universe is endless, perhaps because we are from the universe. In fact, those stars are not far away from us. Our life comes from the elements of the earth, and the elements of the earth come from various particles. These particles come from the universe and gather in the universe that floated like those stars a long time ago.