I think we should, if at all possible, follow the scientific method:
What are the steps of the scientific method?
Define the Problem: The question that you are trying to answer
Form a Hypothesis: An educated guess to the problem identified
Research and Collect Data: Observations and Facts
Experiment
Conclusion: Restate the hypothesis and the results discovered in the experiment and what you learned. It should include data tables and charts or graphs as well as include how the results relate to the real world.
1. Overpopulation
2. Hypothesis: Bullets in the brains of scientists will decrease the population
3. Research & Experimentation could be rolled into a single step; a clarion call for volunteer marksmen
4. Conclusion: Yep . . . the population's definitely decreased.
And, like the shampoo bottle demands . . .
repeat.