See all eight videos at the below links. Have patience; this professor does a great job of ensuring that he speaks in clear terms everyone can understand, using simple reason, logic, and arithmetic to show that we can't take our leaders at face value with respect to energy consumption and overpopulation. If we don't heed these warnings, which are finally becoming more and more prevalent, our species is doomed to disaster; it's that simple.
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One of the highlights of the lecture was the professor quoting Asimov, all the way back in 1969, when none of our leaders or policymakers would hear any talk of overpopulation or overconsumption of the Earth's resources:
(From: Bill Moyers: "A World of Ideas", Doubleday, New York City, 1969, P. 276)
Moyers: What happens to the idea of the dignity of the human species if this population growth continues at its present rate?
Asimov: It will be completely destroyed. I like to use what I call my bathroom metaphor. If two people live in an apartment, and there are two bathrooms, then both have freedom of the bathroom. You can go to the bathroom any time you want to, and stay as long as you want to, for whatever you need. And everyone believes in freedom of the bathroom; it should be right there in the Constitution.
But, if you have twenty people in the same apartment and two bathrooms, no matter how much every person believes in freedom of the bathroom, there is no such thing. You have to set up times for each person, you have to bang at the door; "Aren't you through yet?", and so on.
In the same way, democracy cannot survive overpopulation. Human dignity cannot survive overpopulation. Convenience and decency cannot survive overpopulation. As you put more and more people into the world, the value of life not only declines, it disappears. It doesn't matter if someone dies, the more people there are, the less one individual matters.