In the long run, all real-world growth rates asymptote to zero.
It seems to me that there are two kinds of people; those who understand this as a crucial basis for reasoning about the world, and those who don’t.
If you’re in the latter category, this may help. It’s a very accessible introduction to exponential growth, featuring Prof A. Bartlett of Colorado:
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The way to duck this distinction is to say you don’t care about the very long run. Maybe the story about somebody speaking for the seventh generation in tribal meetings somewhere is true and maybe it isn’t. But as we become more and more a force of nature, our behavior impacts even the seventieth generation. To make our time horizons shorter and shorter as our impacts get longer and longer is obviously flatly unethical, though not entirely irrational.
But for those who don’t understand the argument (rather than choosing to duck it) there are a couple of places to look.
Joel Cohen in his nonfiction magnum opus “How Many People Can the Earth Support?” makes the case well. I was surprised to see a comparable argument on a business site. Henry Blodget quotes Jeremy Grantham to make the case on Business Insider.