Back in the 1980s a movie animated was released with a nod to a science experiment several decades earlier. The science experiment was known as Universe 25. The Link is here.
https://www.victorpest.com/articles/what-humans-can-learn-from-calhouns-rodent-utopia Make your own mind up but overpopulation of humans on planet earth will probably end in the same way. My 2 cents Thought I'd add a note from the future 01-11-21 with all the crap I'm positive it is all going to hell only Alien or UFO people can save us or maybe they are just documenting past history since they have time travel.
