3. **Significance**: - **Dark Matter**: Some theories su…

3. **Significance**:
- **Dark Matter**: Some theories suggest primordial micro black holes might be a significant or even the sole component of dark matter if they exist in large enough numbers.
- **Astrophysical Observations**: Their existence could be inferred if they are causing microlensing effects or if we detect the high-energy particles resulting from their evaporation.