Mundane means no new particles, no new forces, no upheaval of GR, no major changes in our understanding of textbook cosmology. For instance dark matter somehow being allowed to be baryonic goes against textbook cosmology. Somehow generating primordial black holes does not, imo.

Feel free to add your answers.

In ten years from now I will resolve NA if a non-mundane explanation is found (e.g. MOND or some suitable DM particle) or if dark matter is still an unsolved problem.

Otherwise I will resolve yes the answer(s) that I deem to be correct in my interpretation of the scientific consensus of the time.

IMPORTANT: Axions were added as an option. IMO they are NOT a mundane explanation. Change my mind or I will have to resolve that option NA

Resolved axions to NA. Reasoning: axions are not mundane.