<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
What is Three Body?<|im_end|>
<|im_start|>assistant
Here's a couple of possibilities:

1. The physical three body problem. This problem is a mathematical issue that occurs when you have three gravitational bodies rotating around a center of gravity. Their combined influence leads to incredible computational difficulty when determining a predicted trajectory. The ultimate result of their interactions is a chaotic random system with no hope of having a general solution that is computable in a finite number of steps.

2. The second possibility is the Three Body Problem, a science fiction novel by Cixin Liu. The novel centers around the consequences of the first contact between humanity and an alien species that lives in a three body star system.<|im_end|>
<|im_start|>user
Wouldn't the bodies be orbiting a center of gravity, instead of "rotating"?<|im_end|>
<|im_start|>assistant
Yes, orbiting is the more appropriate term as rotation could refer to the orientation of the objects themselves.<|im_end|>
<|im_start|>user
physics<|im_end|>
<|im_start|>assistant
In physics, the three-body problem refers to the simulation or calculation of the motion of three celestial objects, such as planets or stars, that are interacting with each other through gravity. This problem is considered difficult because it is mathematically chaotic and therefore difficult to predict, making it a challenging problem in celestial mechanics and astrodynamics.

The "Three Body" you mentioned may also refer to the Chinese science fiction novel "Three-Body Problem" written by Liu Cixin, which was first published in 2008. The novel is set in a future where humanity is threatened by an alien civilization from a three-star system and focuses on the complex relationships between the three celestial bodies, as well as the political and technological developments that arise as a result of the alien threat.<|im_end|>