Understanding Exponential Growth

Tonight I’m sharing a presentation by Albert Bartlett, retired Physics professor at University of Colorado-Boulder, titled “Arithmetic, Population, and Energy” on how exponential growth works, breaking it down in a clear and straight-forward manner and explaining how this relates to the resources we depend on (recorded in the 1990s):

A quote mentioned in the video above taken from Bill Moyers’ interview of Isaac Asimov back in 1988 (the full transcript available here) stated this:

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 anytime you want to and stay as long as you want to for whatever you need. And everyone believes in the freedom of the bathroom; it should be right there in the Constitution.

But if you have twenty people in the 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 it. Convenience and decency cannot survive it. As you put more and more people onto 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.

Well-put.

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