The 'Three - Body Problem' story has several important themes. Science and its impact on society is a big one. The scientific concept of the three - body problem is central to the story, and it shows how scientific discovery can change the course of human history. Also, survival is a key theme. Both the Trisolarans and humans are fighting for their own survival, which leads to complex power struggles and moral dilemmas. There's also the theme of the unknown. The vastness of the universe and the mystery of the Trisolaran civilization make humans face a lot of uncertainties, which challenges their beliefs and values.
In the 'Three - Body Problem' book story, the theme of hope versus despair is prominent. When faced with the seemingly invincible Trisolaran threat, some humans lose hope and turn to extreme actions, while others still hold on to the hope of survival and resistance. Another theme is the exploration of knowledge. The story shows how the pursuit of knowledge can have far - reaching consequences, both good and bad. And the theme of communication is also there. The difficulty in communicating between the two civilizations, with different languages and ways of thinking, adds to the complexity of the story.
One main theme is the clash of civilizations. There's the encounter between Earth's civilization and the Trisolaran civilization, which brings out different values, technologies, and ways of thinking. Another theme is human nature. We see different human reactions to the threat of the Trisolarans, from fear to hope, from betrayal to loyalty.