Final answer:
The novel can be considered pessimistic due to the recognition of challenges that may not be easily resolved. However, this viewpoint serves a purpose in motivating readers to find better solutions.
Step-by-step explanation:
The novel can be considered pessimistic because it presents a perspective that suggests difficulties in the coming century that may not be easily resolved. The author acknowledges that the challenges humanity faces cannot be neatly solved and may require uncomfortable adaptations. However, it is important to note that this pessimistic outlook serves a purpose in making readers attentive and eager to find better solutions for the future.