Li Mofei woke up in the classroom. According to her neuroscience expertise, she judged that she was in a near-death hallucination of time dilation. The hallucination was filled with her own subconscious projection entities, including her friends Xiang Mi and Ai Jin. She needed to find a way to break the hallucination and return to reality, and the world was far more complicated than she imagined. After she finally woke up from the "hallucination", she desperately realized that the previous world was the collective subconscious field of all mankind in a dying state, not her own hallucination, and she might have accidentally "killed" her best friend with her own hands...
This article is a fantasy future soft science fiction. Most of the scientific theories and other theories are based on realistic theories but are not rigorous due to plot needs. Please do not substitute them into reality.
Concept: The universe may not just be a closed system with only matter and energy, but everything will inevitably end in heat death.