Population Growth Rate decline just seems like too big a coincidence...

So in the 90's there was alot of talk about earth's human population growing exponentially and that it was going to be a big problem. THE problem of the near future. Since then, population rates have gone done everywhere but India and Africa.

It seems entirely possible there was a mechanism used in industrialized nations to curtail population growth. I know the rationalizations claimed why population growth is declining. People aren't comfortable having kids in their economic situations, there's more single people, people are too busy with work, etc. It is also entirely possible those are legitamate reasons brought upon causally from simple social factors.

However, I in no way think it is unlikely that powerful in the 90's began to address the issue of overpopulation, and put plans into effect shortly thereafter. Something that seems like its people researched what motivates people to have kids. Determined it was something largely determined by biology (hormones and neurotransmitters) did research into what chemicals could reduce those chemicals in the human body, and people simply got less motivated to have kids because of biochemistry. It could easily be more complicated than this, but it could be something as simple as testosterone or seratonin. It could have been found that people with high levels of either of those chemicals had more kids. After finding out that information, something could have been directly added to water that testing showed lower those chemicals in the body, OR something could have been done more indirectly. Increase something like plastics or a specific food like soy, that might reduce levels of testosterone, I'm not saying those things do, I'm just saying, it is within our ability to determine things like that and also increase their presence in society. It could be more directly nefarious like giving people additional chemicals in their vaccines or something. But then once the biochemistry of most people is changed, they could feel less connected to partners or just be less biologically motivated to have a kid, and here we are.

I'm not saying I know anything is the case. I'm just saying, I think it is very possible to pull something off. And the decrease in population is evidence, not proof, that something was pulled off. Its just a big conincidence that shortly after its determined population growth is a big problem, it for the first time in history takes care of itself.