1. Unique

2. Very small changes in initial conditions, after constant amplification, will cause great differences in its future state.

3. Explain that the logic that everything in the universe follows is not unique.

4. It is also nonlinear.

The "butterfly effect" has been discovered and confirmed by scientists in more and more fields, or because it exists in meteorology, biology, physics, celestial movement, human beings, military affairs, politics and other fields.

6.C