Human Overpopulation Control?

What do 'you' believe to be the best solution?

This is how 'the alien' prioritizes the possibility:

1. Improved problem understanding

2. Better science & numbers re balancing everything

3. Improved equality

4. A new economic model

5. Less wastefulness

6. Virtual sex

7. Virtual offspring

8. Virtual afterlife

9. [more possibility coming]

10. [more possibility coming]

11. [more possibility coming]

12. Birth control regulation

13. Improved birth control

14. [more possibility coming]

15. [more possibility coming]

16. [more possibility coming]

17. Viruses

18. Diseases

19. Survival of the fittest

20. Money decides

21. God takes care of this

22. It's NOT a problem

23. Everyone is terminated at a particular age