### If the universe is a large model#

Dark matter cannot be directly observed because this part of the universe only exists in probability, in the probability space where the large model has not been generated.

- Dark matter exists, but has not been generated, it is void, not any particle
- Multiple universes exist, and each observer will collapse a universe from the probability space, each generation of the large model is unique
- Dark matter is not increasing or decreasing, it is dynamic, and the direction of change is the direction of time